| F Factor | 
              | F(1)F(0)-ATPase use Proton-Translocating ATPases | 
              | F-2 Toxin use Zearalenone | 
              | F-Actin use Actins | 
              | F-Box Motifs | 
              | F-Box Proteins | 
              | F-Met-Leu-Phe use N-Formylmethionine Leucyl-Phenylalanine | 
              | F1 ATPase use Proton-Translocating ATPases | 
              | F2-Isoprostanes | 
              | Fab Fragments use Immunoglobulin Fab Fragments | 
              | Faba Bean use Vicia faba | 
              | Fabaceae | 
              | Fabavirus | 
              | Fabiana imbricata | 
              | Fabry Disease | 
              | Face | 
              | Face Bow, Orthodontic use Extraoral Traction Appliances | 
              | Face Correctors use Products for Facial Makeup | 
              | Face Fly use Muscidae | 
              | Face Lift use Rhytidoplasty | 
              | Facet Joint use Zygapophyseal Joint | 
              | Facial Asymmetry | 
              | Facial Bones | 
              | Facial Dermatoses | 
              | Facial Expression | 
              | Facial Hemiatrophy | 
              | Facial Injuries | 
              | Facial Masks | 
              | Facial Muscles | 
              | Facial Myokymia use Facial Nerve Diseases | 
              | Facial Neoplasms | 
              | Facial Nerve | 
              | Facial Nerve Diseases | 
              | Facial Nerve Injuries | 
              | Facial Nerve Trauma use Facial Nerve Injuries | 
              | Facial Neuralgia | 
              | Facial Neuropathy use Facial Nerve Diseases | 
              | Facial Neuropathy, Inflammatory, Acute use Bell Palsy | 
              | Facial Neuropathy, Traumatic use Facial Nerve Injuries | 
              | Facial Nucleus | 
              | Facial Pain | 
              | Facial Pain Syndromes use Facial Neuralgia | 
              | Facial Pain, Referred use Pain, Referred | 
              | Facial Palsy use Facial Paralysis | 
              | Facial Paralysis | 
              | Facial Paralysis, Idiopathic use Bell Palsy | 
              | Facial Powder use Products for Facial Makeup | 
              | Facial Recognition Agnosia use Prosopagnosia | 
              | Facial Spasm, Unilateral use Hemifacial Spasm | 
              | Facial Transplantation | 
              | Facies | 
              | Facilitated Diffusion | 
              | Facilitated Tucking | 
              | Facility Access use Architectural Accessibility | 
              | Facility Construction use Facility Design and Construction | 
              | Facility Design and Construction | 
              | Facility Regulation and Control | 
              | Faciocutaneoskeletal Syndrome use Costello Syndrome | 
              | Facioscapulohumeral Muscular Dystrophy use Muscular Dystrophy, Facioscapulohumeral | 
              | Facsimile Transmission use Telefacsimile | 
              | Facteur Thymique Serique use Thymic Factor, Circulating | 
              | Factitious Disorders | 
              | Factor Analysis, Statistical | 
              | Factor B use Complement Factor B | 
              | Factor Construct Rating Scales (FCRS) use Psychiatric Status Rating Scales | 
              | Factor D use Complement Factor D | 
              | Factor For Inversion Stimulation Protein | 
              | Factor H use Complement Factor H | 
              | Factor I use Fibrinogen | 
              | Factor II use Prothrombin | 
              | Factor II Deficiency use Hypoprothrombinemias | 
              | Factor III use Thromboplastin | 
              | Factor IV use Calcium | 
              | Factor IX | 
              | Factor IX Deficiency use Hemophilia B | 
              | Factor IX, Activated use Factor IXa | 
              | Factor IXa | 
              | Factor V | 
              | Factor V Deficiency | 
              | Factor V, Activated use Factor Va | 
              | Factor Va | 
              | Factor VII | 
              | Factor VII Deficiency | 
              | Factor VII, Activated use Factor VIIa | 
              | Factor VIIa | 
              | Factor VIII | 
              | Factor VIII Clotting Antigen use Factor VIII | 
              | Factor VIII Coagulant Antigen use Factor VIII | 
              | Factor VIII Deficiency use Hemophilia A | 
              | Factor VIII Procoagulant Activity use Factor VIII | 
              | Factor VIII, Activated use Factor VIIIa | 
              | Factor VIII, Thrombin-Activated use Factor VIIIa | 
              | Factor VIII-Related Antigen use von Willebrand Factor | 
              | Factor VIIIa | 
              | Factor X | 
              | Factor X Deficiency | 
              | Factor X, Activated use Factor Xa | 
              | Factor Xa | 
              | Factor Xa Inhibitors | 
              | Factor XI | 
              | Factor XI Deficiency | 
              | Factor XI, Activated use Factor XIa | 
              | Factor XIa | 
              | Factor XII | 
              | Factor XII Deficiency | 
              | Factor XII, Activated use Factor XIIa | 
              | Factor XIIa | 
              | Factor XIII | 
              | Factor XIII Deficiency | 
              | Factor XIII Transamidase use Factor XIII | 
              | Factor XIII, Activated use Factor XIIIa | 
              | Factor XIIIa | 
              | Facultative Lagoons | 
              | Faculty | 
              | Faculty Practice, Nursing use Nursing Faculty Practice | 
              | Faculty, Dental | 
              | Faculty, Medical | 
              | Faculty, Nursing | 
              | Faculty, Pharmacy use Faculty | 
              | FAD use Flavin-Adenine Dinucleotide | 
              | Fadrozole | 
              | Faeroe Islands use Denmark | 
              | Fagaceae | 
              | Fagara horrida use Gleditsia | 
              | Fagine use Choline | 
              | Fagopyrum | 
              | Fagopyrum esculentum use Fagopyrum | 
              | Fagopyrum esculentum (Homeopathy) | 
              | Fagopyrum sagittatum use Fagopyrum | 
              | Fagopyrum tataricum use Fagopyrum | 
              | Fagus | 
              | Fagus silvatica | 
              | Fagus sylvatica use Fagus silvatica | 
              | FAIDS use Feline Acquired Immunodeficiency Syndrome | 
              | Failed Back Surgery Syndrome | 
              | Failure to Thrive | 
              | Failure, Equipment use Equipment Failure | 
              | Fainting use Syncope | 
              | Fair Market Sanitation use Market Sanitation | 
              | Fairy Candle use Cimicifuga racemosa | 
              | Fairy Shrimp use Anostraca | 
              | Fairy Wand use Helonias dioica | 
              | Fairywand use Helonias dioica | 
              | Faith Healing | 
              | Falconiformes | 
              | Falkland Islands | 
              | Fall use Rockfall | 
              | Fall Crocus use Colchicum | 
              | Fallen Urinary Bladder use Cystocele | 
              | Falling Rate Filtration use Declining Rate Filtration | 
              | Falling Tide | 
              | Fallopian Tube Diseases | 
              | Fallopian Tube Neoplasms | 
              | Fallopian Tube Patency Tests | 
              | Fallopian Tubes | 
              | Fallot's Tetralogy use Tetralogy of Fallot | 
              | Fallot's Trilogy use Trilogy of Fallot | 
              | Falls, Accidental use Accidental Falls | 
              | False Allegations use Deception | 
              | False Dittany use Dictamnus albus | 
              | False Grape use Ampelopsis quinquefolia | 
              | False Hellebore use Adonis vernalis | 
              | False Ipeca use Triosteum perfoliatum | 
              | False Iroko use Upas antiaris | 
              | False Killer Whale use Dolphins | 
              | False Memory Syndrome use Repression, Psychology | 
              | False Mvule use Upas antiaris | 
              | False Negative Reactions | 
              | False Negative Results use False Negative Reactions | 
              | False Ohelo use Daphne indica | 
              | False Pepper use Schinus molle | 
              | False Physiological Feedback use Biofeedback, Psychology | 
              | False Positive Reactions | 
              | False Representation | 
              | False Unicorn use Helonias dioica | 
              | False Unicorn Root use Aletris farinosa | 
              | False Valerian use Senecio aureus | 
              | Familial Amyloid Polyneuropathies use Amyloid Neuropathies, Familial | 
              | Familial Atypical Multiple Mole-Melanoma use Dysplastic Nevus Syndrome | 
              | Familial Benign Chronic Pemphigus use Pemphigus, Benign Familial | 
              | Familial CHARGE Syndrome use CHARGE Syndrome | 
              | Familial Cold Autoinflammatory Syndrome use Cryopyrin-Associated Periodic Syndromes | 
              | Familial Cold Urticaria use Cryopyrin-Associated Periodic Syndromes | 
              | Familial Dystonia use Dystonic Disorders | 
              | Familial Hemiplegic Migraine use Migraine with Aura | 
              | Familial Hemophagocytic Lymphocytosis use Lymphohistiocytosis, Hemophagocytic | 
              | Familial Hypertrophic Cardiomyopathy use Cardiomyopathy, Hypertrophic, Familial | 
              | Familial Hypokalemic Periodic Paralysis use Hypokalemic Periodic Paralysis | 
              | Familial Hypophosphatemic Rickets | 
              | Familial Juvenile Parkinsonism use Parkinsonian Disorders | 
              | Familial Mediterranean Fever | 
              | Familial Metabolic Brain Diseases use Brain Diseases, Metabolic, Inborn | 
              | Familial Motor Neuron Disease use Motor Neuron Disease | 
              | Familial Primary Pulmonary Hypertension | 
              | Familial Tremor use Essential Tremor | 
              | Familiar Allocations | 
              | Familiarity use Recognition (Psychology) | 
              | Family | 
              | Family and Community Medicine use Family Practice | 
              | Family Caregivers use Caregivers | 
              | Family Characteristics | 
              | Family Conflict | 
              | Family Farming use Livestock Industry | 
              | Family Health | 
              | Family Health Program use Family Health Strategy | 
              | Family Health Strategy | 
              | Family Health Strategy (FHS) use Family Health Strategy | 
              | Family Income use Income | 
              | Family Leave | 
              | Family Life Cycles use Family | 
              | Family Medicine use Family Practice | 
              | Family Members use Family | 
              | Family Nurse Practitioners | 
              | Family Nursing | 
              | Family Planning use Family Planning Services | 
              | Family Planning (Public Health) | 
              | Family Planning Centers use Ambulatory Care Facilities | 
              | Family Planning Policy | 
              | Family Planning Programmes use Family Planning Programs | 
              | Family Planning Programs | 
              | Family Planning Services | 
              | Family Practice | 
              | Family Relations | 
              | Family Relationship use Family Relations | 
              | Family Size use Family Characteristics | 
              | Family Therapy | 
              | Family Tree use Pedigree | 
              | Family Violence use Domestic Violence | 
              | Family Well-Being use Family Health | 
              | Family, Reconstituted use Family | 
              | Family, Single-Parent use Single-Parent Family | 
              | Family-Patient Lodging use Housing | 
              | Famine | 
              | Famine, Endemic | 
              | Famine, Occult | 
              | Famotidine | 
              | Famous Persons | 
              | Fanconi Anemia | 
              | Fanconi Anemia Complementation Group A Protein | 
              | Fanconi Anemia Complementation Group C Protein | 
              | Fanconi Anemia Complementation Group D1 Protein use BRCA2 Protein | 
              | Fanconi Anemia Complementation Group D2 Protein | 
              | Fanconi Anemia Complementation Group E Protein | 
              | Fanconi Anemia Complementation Group F Protein | 
              | Fanconi Anemia Complementation Group G Protein | 
              | Fanconi Anemia Complementation Group L Protein | 
              | Fanconi Anemia Complementation Group Proteins | 
              | Fanconi Anemia Proteins use Fanconi Anemia Complementation Group Proteins | 
              | Fanconi Syndrome | 
              | FANFT | 
              | Fangfeng use Apiaceae | 
              | Fangotherapy use Mud Therapy | 
              | Fannia use Muscidae | 
              | Fantasy | 
              | FAO, United Nations use United Nations | 
              | Far East | 
              | Far Eastern Russian Encephalitis use Encephalitis, Tick-Borne | 
              | Far-Western Blotting use Blotting, Far-Western | 
              | Farber Lipogranulomatosis | 
              | Farm Animals use Animals, Domestic | 
              | Farm Animals (Environmental Health) use Livestock | 
              | Farm Worker use Agriculture | 
              | Farm Workers use Agriculture | 
              | Farmer Association use Farmers Associations | 
              | Farmer's Lung | 
              | Farmers Associations | 
              | Farming use Livestock Industry | 
              | Farmworker use Agriculture | 
              | Farmworkers use Agriculture | 
              | Farnesol | 
              | Farnesyl-Diphosphate Farnesyltransferase | 
              | Farnesylation use Prenylation | 
              | Farnesyltranstransferase | 
              | Farr Assay use Radioimmunoprecipitation Assay | 
              | Farsightedness use Hyperopia | 
              | fas Antigens use Antigens, CD95 | 
              | Fas Ligand Protein | 
              | fas Receptors use Antigens, CD95 | 
              | Fas-Associated Death Domain Protein | 
              | Fascia | 
              | Fascia Dentata use Dentate Gyrus | 
              | Fascia Lata | 
              | Fascia, Superficial use Subcutaneous Tissue | 
              | Fascicular Block use Bundle-Branch Block | 
              | Fasciculation | 
              | Fasciitis | 
              | Fasciitis, Necrotizing | 
              | Fasciitis, Plantar | 
              | Fasciitis, Plantar, Chronic use Fasciitis, Plantar | 
              | Fasciola | 
              | Fasciola hepatica | 
              | Fascioliasis | 
              | Fasciolidae | 
              | Fascioloides use Fasciolidae | 
              | Fascioloidiasis | 
              | Fasciolopsiasis use Trematode Infections | 
              | Fasciolopsis use Fasciolidae | 
              | Fast Atom Bombardment Mass Spectrometry use Spectrometry, Mass, Fast Atom Bombardment | 
              | Fast Atom Bombardment Mass Spectroscopy use Spectrometry, Mass, Fast Atom Bombardment | 
              | Fast Electrons use Electrons | 
              | Fast Foods | 
              | Fast Neutrons | 
              | Fast-Wave Sleep use Sleep, REM | 
              | Fasting | 
              | Fat Body | 
              | Fat Cells use Adipocytes | 
              | Fat Emulsions, Intravenous | 
              | Fat Necrosis | 
              | Fat Soluble Vitamins | 
              | Fat Substitutes | 
              | Fat-Restricted Diet use Diet, Fat-Restricted | 
              | Fatal Familial Insomnia use Insomnia, Fatal Familial | 
              | Fatal Outcome | 
              | Father-Child Relations | 
              | Fatherhood use Parenting | 
              | Fathers | 
              | Fatigue | 
              | Fatigue Fractures use Fractures, Stress | 
              | Fatigue Syndrome, Chronic | 
              | Fatigue, Auditory use Auditory Fatigue | 
              | Fatigue, Mental use Mental Fatigue | 
              | Fatigue, Muscle use Muscle Fatigue | 
              | Fatigue, Visual use Asthenopia | 
              | Fats | 
              | Fats, Dietary use Dietary Fats | 
              | Fats, Unsaturated | 
              | Fatty Acid Cyclo-Oxygenase use Prostaglandin-Endoperoxide Synthases | 
              | Fatty Acid Desaturases | 
              | Fatty Acid Desaturating Enzymes use Fatty Acid Desaturases | 
              | Fatty Acid Synthase II use Fatty Acid Synthase, Type II | 
              | Fatty Acid Synthase, Type I | 
              | Fatty Acid Synthase, Type II | 
              | Fatty Acid Synthases | 
              | Fatty Acid Synthesis Inhibitors | 
              | Fatty Acid Synthetase Complex, Type II use Fatty Acid Synthase, Type II | 
              | Fatty Acid Transport Proteins | 
              | Fatty Acid-Binding Proteins | 
              | Fatty Acid-Transport Protein use Fatty Acid Transport Proteins | 
              | Fatty Acids | 
              | Fatty Acids, Essential | 
              | Fatty Acids, Esterified use Fatty Acids | 
              | Fatty Acids, Free use Fatty Acids, Nonesterified | 
              | Fatty Acids, Monounsaturated | 
              | Fatty Acids, Nonesterified | 
              | Fatty Acids, Omega-3 | 
              | Fatty Acids, Omega-6 | 
              | Fatty Acids, Polyunsaturated use Fatty Acids, Unsaturated | 
              | Fatty Acids, Saturated use Fatty Acids | 
              | Fatty Acids, Short-Chain use Fatty Acids, Volatile | 
              | Fatty Acids, Unsaturated | 
              | Fatty Acids, Volatile | 
              | Fatty Acyl CoA use Acyl Coenzyme A | 
              | Fatty Acyl Thioesterase use Palmitoyl-CoA Hydrolase | 
              | Fatty Alcohols | 
              | Fatty Liver | 
              | Fatty Liver, Alcoholic | 
              | Fatty Tissue use Adipose Tissue | 
              | Fatty Tumor use Lipoma | 
              | Fault use Geological Fault | 
              | Fault Plane | 
              | Fauna | 
              | Fava Bean use Vicia faba | 
              | Favism | 
              | Favre-Racouchot Syndrome use Facial Dermatoses | 
              | Favus use Tinea Favosa | 
              | Fax use Telefacsimile | 
              | Fazio-Londe Syndrome use Bulbar Palsy, Progressive | 
              | Fc epsilon Receptors use Receptors, IgE | 
              | Fc Fragments use Immunoglobulin Fc Fragments | 
              | Fc gamma Receptors use Receptors, IgG | 
              | Fc Immunoglobulins use Immunoglobulin Fc Fragments | 
              | Fc Receptors use Receptors, Fc | 
              | Fc Receptors, epsilon use Receptors, IgE | 
              | Fc Receptors, gamma use Receptors, IgG | 
              | FCCP use Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone | 
              | FD & C Red No. 3 use Erythrosine | 
              | fd Phage use Bacteriophage M13 | 
              | Fear | 
              | Fear, Dental use Dental Anxiety | 
              | Feasibility Studies | 
              | Feathers | 
              | Febrile Neutropenia | 
              | Febrile Seizures use Seizures, Febrile | 
              | Fecal Bacteria use Coliforms | 
              | Fecal Coliforms use Coliforms | 
              | Fecal Impaction | 
              | Fecal Incontinence | 
              | Fecalith use Fecal Impaction | 
              | Feces | 
              | Fecundity use Fertility | 
              | Fecundity Rate | 
              | FECV use Coronavirus, Feline | 
              | Federal Aid use Financing, Government | 
              | Federal Democratic Republic of Ethiopia use Ethiopia | 
              | Federal Government | 
              | Federal Health Insurance Plans, United States use National Health Insurance, United States | 
              | Federal Republic of Germany use Germany, West | 
              | Federal State use Federalism | 
              | Federal Trade Commission (U.S.) use United States Federal Trade Commission | 
              | Federal Union use Federal Government | 
              | Federalism | 
              | Federated States of Micronesia use Micronesia | 
              | Federation use Federalism | 
              | Federation of Malaya use Malaysia | 
              | Fee Schedules | 
              | Fee, Capitation use Capitation Fee | 
              | Fee-for-Service Plans | 
              | Fee-for-Service, Medical use Fee-for-Service Plans | 
              | Feedback | 
              | Feedback, Biochemical use Feedback, Physiological | 
              | Feedback, Physiological | 
              | Feedback, Psychological | 
              | Feedback, Psychophysiologic use Biofeedback, Psychology | 
              | Feedback, Sensory | 
              | Feeder Cells | 
              | Feeding | 
              | Feeding and Eating Disorders of Childhood | 
              | Feeding Behavior | 
              | Feeding Bottle use Nursing Bottles | 
              | Feeding during Pregnancy use Prenatal Nutrition | 
              | Feeding Methods | 
              | Feeding Patterns use Feeding Behavior | 
              | Feeding, Prenatal use Prenatal Nutrition | 
              | Feelings use Emotions | 
              | Feer Disease use Acrodynia | 
              | Fees and Charges | 
              | Fees, Dental | 
              | Fees, Medical | 
              | Fees, Pharmaceutical | 
              | Fees, Prescription use Prescription Fees | 
              | Feijoa | 
              | Feint use Simulacra | 
              | Fel tauri | 
              | Feldshers use Physician Assistants | 
              | Felidae | 
              | Feline Acquired Immunodeficiency Syndrome | 
              | Feline AIDS use Feline Acquired Immunodeficiency Syndrome | 
              | Feline Ataxia use Feline Panleukopenia | 
              | Feline calicivirus use Calicivirus, Feline | 
              | Feline Enteric Coronavirus use Coronavirus, Feline | 
              | Feline foamy virus use Spumavirus | 
              | Feline Immunodeficiency Virus use Immunodeficiency Virus, Feline | 
              | Feline Infectious Enteritis use Feline Panleukopenia | 
              | Feline Infectious Enteritis Virus use Feline panleukopenia virus | 
              | Feline Infectious Peritonitis | 
              | Feline infectious peritonitis virus use Coronavirus, Feline | 
              | Feline Lentiviruses use Lentiviruses, Feline | 
              | Feline Leukemia use Leukemia, Feline | 
              | Feline leukemia virus use Leukemia Virus, Feline | 
              | Feline Lymphoma Virus use Leukemia Virus, Feline | 
              | Feline Panleukopenia | 
              | Feline panleukopenia virus | 
              | Feline Sarcoma Virus, Gardner-Arnstein use Sarcoma Viruses, Feline | 
              | Feline Sarcoma Virus, Hardy-Zuckerman use Sarcoma Viruses, Feline | 
              | Feline Sarcoma Virus, Snyder-Theilen use Sarcoma Viruses, Feline | 
              | Feline Sarcoma Viruses use Sarcoma Viruses, Feline | 
              | Feline Syncytium-Forming Virus use Spumavirus | 
              | Feline T-Lymphotropic Lentivirus use Immunodeficiency Virus, Feline | 
              | Felis | 
              | Felis catus use Cats | 
              | Felis domesticus use Cats | 
              | Fellenwort use Dulcamara (Homeopathy) | 
              | Fellowships and Scholarships | 
              | Felodipine | 
              | Felonwood use Dulcamara (Homeopathy) | 
              | Felty Syndrome | 
              | Felty's Syndrome use Felty Syndrome | 
              | FeLV use Leukemia Virus, Feline | 
              | Felypressin | 
              | Female | 
              | Female Athlete Triad Syndrome | 
              | Female Circumcision use Circumcision, Female | 
              | Female Condoms use Condoms, Female | 
              | Female Genitourinary Diseases use Female Urogenital Diseases | 
              | Female Regulator use Senecio aureus | 
              | Female Urogenital Diseases | 
              | Female Urogenital Diseases and Pregnancy Complications | 
              | Feminine Hygiene Products | 
              | Femininity | 
              | Feminism | 
              | Feminist Ethics use Feminism | 
              | Feminization | 
              | Femoracetabular Impingement | 
              | Femoral Artery | 
              | Femoral Fractures | 
              | Femoral Head Prosthesis use Hip Prosthesis | 
              | Femoral Hernia use Hernia, Femoral | 
              | Femoral Mononeuropathy use Femoral Neuropathy | 
              | Femoral Neck use Femur Neck | 
              | Femoral Neck Fractures | 
              | Femoral Neoplasms | 
              | Femoral Nerve | 
              | Femoral Nerve Diseases use Femoral Neuropathy | 
              | Femoral Neuropathy | 
              | Femoral Vein | 
              | Femur | 
              | Femur Head | 
              | Femur Head Necrosis | 
              | Femur Neck | 
              | Fenamates | 
              | Fenbendazole | 
              | Fenclonine | 
              | Fendiline | 
              | Fenelzin use Phenelzine | 
              | Fenestration, Labyrinth | 
              | Fenfluramine | 
              | Fenformin use Phenformin | 
              | Fenilbutazon use Phenylbutazone | 
              | Fenilprenazone use Feprazone | 
              | Fenitoin use Phenytoin | 
              | Fenitrothion | 
              | Fenmetrazin use Phenmetrazine | 
              | Fennel use Foeniculum | 
              | Fennel, Dog use Anthemis | 
              | Fennel, Wild use Nigella damascena | 
              | Fenofibrate | 
              | Fenoldopam | 
              | Fenoprofen | 
              | Fenoterol | 
              | Fenretinide | 
              | Fens use Swamps | 
              | Fentanyl | 
              | Fenthion | 
              | Fentolamin use Phentolamine | 
              | Fenugreek use Trigonella | 
              | FEP use Polytetrafluoroethylene | 
              | Feprazone | 
              | Fer-de-Lance use Bothrops | 
              | Fermentation | 
              | Fermium | 
              | Fern Test use Cervix Mucus | 
              | Fern, Bracken use Pteridium | 
              | Fern, Brake use Pteris | 
              | Fern, Calaguala use Polypodium | 
              | Fern, Giant Holly use Polystichum | 
              | Fern, Licorice use Polypodium | 
              | Fern, Male use Dryopteris | 
              | Fern, Rainbow use Selaginellaceae | 
              | Fern, Sweet use Myricaceae | 
              | Ferns | 
              | Ferredoxin-NADP Reductase | 
              | Ferredoxin-Nitrite Reductase | 
              | Ferredoxins | 
              | Ferrets | 
              | Ferri phosphas use Ferrum Phosphoricum | 
              | Ferric Chloride | 
              | Ferric Compounds | 
              | Ferric Sulfate | 
              | Ferrichrome | 
              | Ferricyanides | 
              | Ferricytochrome c use Cytochromes c | 
              | Ferrihemoglobin use Methemoglobin | 
              | Ferrihemoprotein P-450 Reductase use NADPH-Ferrihemoprotein Reductase | 
              | Ferrimyoglobin use Metmyoglobin | 
              | Ferriprotoporphyrin use Hemin | 
              | Ferritins | 
              | Ferrobacillus use Iron Bacteria | 
              | Ferrochelatase | 
              | Ferrocyanide Reaction use Prussian Blue Reaction | 
              | Ferrocyanides | 
              | Ferrocytochrome c use Cytochromes c | 
              | Ferroprotoporphyrin use Heme | 
              | Ferrosoferric Oxide | 
              | Ferrous Compounds | 
              | Ferrous Metallurgy Industry use Iron and Steel Industry | 
              | Ferrous Sulfate | 
              | Ferroxidase use Ceruloplasmin | 
              | Ferrozine | 
              | Ferrum Aceticum | 
              | Ferrum Arsenicosum | 
              | Ferrum Bromatum | 
              | Ferrum Carbonicum | 
              | Ferrum Citricum | 
              | Ferrum Cyanatum | 
              | Ferrum hydrogenium reductum use Ferrum Metallicum | 
              | Ferrum Iodatum | 
              | Ferrum Lacticum | 
              | Ferrum Magneticum | 
              | Ferrum Metallicum | 
              | Ferrum Muriaticum | 
              | Ferrum Oxydatum Rubrum | 
              | Ferrum Pernitricum | 
              | Ferrum Phosphoricum | 
              | Ferrum Phosphoricum hydricum | 
              | Ferrum Picricum | 
              | Ferrum Protoxalatum | 
              | Ferrum Pyrophosphoricum | 
              | Ferrum Reductum | 
              | Ferrum sesquichloratum use Ferrum Muriaticum | 
              | Ferrum Sulphuricum | 
              | Ferrum Tartaricum | 
              | Fertile Period | 
              | Fertility | 
              | Fertility Agents | 
              | Fertility Agents, Female | 
              | Fertility Agents, Female, Hormonal use Fertility Agents, Female | 
              | Fertility Agents, Female, Synthetic use Fertility Agents, Female | 
              | Fertility Agents, Male | 
              | Fertility Agents, Male, Hormonal use Fertility Agents, Male | 
              | Fertility Agents, Male, Synthetic use Fertility Agents, Male | 
              | Fertility Planning use Family Planning (Public Health) | 
              | Fertility Preservation | 
              | Fertility Rate use Birth Rate | 
              | Fertilization | 
              | Fertilization in Vitro | 
              | Fertilization, Delayed use Fertilization | 
              | Fertilization, Polyspermic use Fertilization | 
              | Fertilized Ovum use Zygote | 
              | Fertilizer Industry | 
              | Fertilizers | 
              | Ferula | 
              | Ferula assa foetida use Asafoetida (Homeopathy) | 
              | Ferula assafoetida use Asafoetida (Homeopathy) | 
              | Ferula communis use Ferula glauca | 
              | Ferula glauca | 
              | Ferula neapolitana use Ferula glauca | 
              | Ferula sumbul use Sumbulus moschatus | 
              | Ferumoxytol use Ferrosoferric Oxide | 
              | fes Proto-Oncogene Proteins use Proto-Oncogene Proteins c-fes | 
              | Festivals use Holidays | 
              | Festschrift | 
              | Festuca | 
              | Fetal Alcohol Spectrum Disorders | 
              | Fetal Anoxia use Fetal Hypoxia | 
              | Fetal Blood | 
              | Fetal Cell Research use Fetal Research | 
              | Fetal Circulation, Persistent use Persistent Fetal Circulation Syndrome | 
              | Fetal Cord Entanglement use Nuchal Cord | 
              | Fetal Death | 
              | Fetal Development | 
              | Fetal Diseases | 
              | Fetal Distress | 
              | Fetal Edema use Hydrops Fetalis | 
              | Fetal Globulins | 
              | Fetal Growth Retardation | 
              | Fetal Hair use Hair | 
              | Fetal Heart | 
              | Fetal Heart Rate use Heart Rate, Fetal | 
              | Fetal Hemoglobin | 
              | Fetal Hydrops use Hydrops Fetalis | 
              | Fetal Hypoxia | 
              | Fetal Immunity, Maternally-Acquired use Immunity, Maternally-Acquired | 
              | Fetal Macrosomia | 
              | Fetal Malnutrition use Fetal Nutrition Disorders | 
              | Fetal Maturity, Chronologic use Gestational Age | 
              | Fetal Maturity, Functional use Fetal Organ Maturity | 
              | Fetal Membranes use Extraembryonic Membranes | 
              | Fetal Membranes, Premature Rupture | 
              | Fetal Monitoring | 
              | Fetal Mortality | 
              | Fetal Movement | 
              | Fetal Mummification use Fetal Death | 
              | Fetal Nutrition Disorders | 
              | Fetal Organ Maturity | 
              | Fetal Presentation use Labor Presentation | 
              | Fetal Presentation, Breech use Breech Presentation | 
              | Fetal Programming use Fetal Development | 
              | Fetal Proteins | 
              | Fetal Reduction use Pregnancy Reduction, Multifetal | 
              | Fetal Research | 
              | Fetal Resorption | 
              | Fetal Stem Cells | 
              | Fetal Structures use Fetus | 
              | Fetal Termination, Selective use Pregnancy Reduction, Multifetal | 
              | Fetal Therapies | 
              | Fetal Therapy use Fetal Therapies | 
              | Fetal Tissue Research use Fetal Research | 
              | Fetal Tissue Transplantation | 
              | Fetal Transfusion use Blood Transfusion, Intrauterine | 
              | Fetal Ultrasonography use Ultrasonography, Prenatal | 
              | Fetal Version use Version, Fetal | 
              | Fetal Viability | 
              | Fetal Weight | 
              | Fetid Buckeye use Aesculus glabra | 
              | Fetishism (Psychiatric) | 
              | Fetofetal Transfusion | 
              | Fetomaternal Transfusion | 
              | Fetoplacental Circulation use Placental Circulation | 
              | Fetoplacental Function Tests use Placental Function Tests | 
              | Fetoscopes | 
              | Fetoscopic Surgical Procedures use Fetoscopy | 
              | Fetoscopy | 
              | Fetotoxins use Teratogens | 
              | Fetuin-B | 
              | Fetuins | 
              | Fetus | 
              | Fetus, Aborted use Aborted Fetus | 
              | Feuerstein-Mims Syndrome use Nevus, Sebaceous of Jadassohn | 
              | Fever | 
              | Fever Blister use Herpes Labialis | 
              | Fever Herb use Achyranthes calea | 
              | Fever of Unknown Origin | 
              | Fever Therapy use Hyperthermia, Induced | 
              | Feverfew use Tanacetum parthenium | 
              | FGF Receptors use Receptors, Fibroblast Growth Factor | 
              | Fiber Optic Technology | 
              | Fiber, Dietary use Dietary Fiber | 
              | Fiberglass Casts use Casts, Surgical | 
              | Fiberglass Pipes | 
              | Fibrates use Fibric Acids | 
              | Fibric Acids | 
              | Fibril-Associated Collagens | 
              | Fibrillar Collagens | 
              | Fibrin | 
              | Fibrin Adhesive use Fibrin Tissue Adhesive | 
              | Fibrin Clot Lysis Time | 
              | Fibrin Degradation Products use Fibrin Fibrinogen Degradation Products | 
              | Fibrin Fibrinogen Degradation Products | 
              | Fibrin Fibrinogen Split Products use Fibrin Fibrinogen Degradation Products | 
              | Fibrin Foam | 
              | Fibrin Glue use Fibrin Tissue Adhesive | 
              | Fibrin Modulating Agents | 
              | Fibrin Sealant System use Fibrin Tissue Adhesive | 
              | Fibrin Stabilizing Factor use Factor XIII | 
              | Fibrin Tissue Adhesive | 
              | Fibrinase use Factor XIII | 
              | Fibrinogen | 
              | Fibrinogen Adhesive use Fibrin Tissue Adhesive | 
              | Fibrinogen Deficiency use Afibrinogenemia | 
              | Fibrinogen Receptors use Receptors, Fibrinogen | 
              | Fibrinogens, Abnormal | 
              | Fibrinoligase use Factor XIIIa | 
              | Fibrinolysin | 
              | Fibrinolysis | 
              | Fibrinolytic Agents | 
              | Fibrinolytic Therapy use Thrombolytic Therapy | 
              | Fibrinopeptide A | 
              | Fibrinopeptide B | 
              | Fibro-odontoma, Ameloblastic use Odontoma | 
              | Fibroadenoma | 
              | Fibrobacter | 
              | Fibrobacteres | 
              | Fibroblast Collagenase use Matrix Metalloproteinase 8 | 
              | Fibroblast Growth Factor 1 | 
              | Fibroblast Growth Factor 10 | 
              | Fibroblast Growth Factor 2 | 
              | Fibroblast Growth Factor 3 | 
              | Fibroblast Growth Factor 4 | 
              | Fibroblast Growth Factor 5 | 
              | Fibroblast Growth Factor 6 | 
              | Fibroblast Growth Factor 7 | 
              | Fibroblast Growth Factor 8 | 
              | Fibroblast Growth Factor 9 | 
              | Fibroblast Growth Factor Receptor 1 use Receptor, Fibroblast Growth Factor, Type 1 | 
              | Fibroblast Growth Factor Receptor 2 use Receptor, Fibroblast Growth Factor, Type 2 | 
              | Fibroblast Growth Factor Receptor 3 use Receptor, Fibroblast Growth Factor, Type 3 | 
              | Fibroblast Growth Factor Receptor 4 use Receptor, Fibroblast Growth Factor, Type 4 | 
              | Fibroblast Growth Factor Receptor 5 use Receptor, Fibroblast Growth Factor, Type 5 | 
              | Fibroblast Growth Factor Receptors use Receptors, Fibroblast Growth Factor | 
              | Fibroblast Growth Factor, Acidic use Fibroblast Growth Factor 1 | 
              | Fibroblast Growth Factor, Basic use Fibroblast Growth Factor 2 | 
              | Fibroblast Growth Factors | 
              | Fibroblast Intermediate Filament Proteins use Intermediate Filament Proteins | 
              | Fibroblasts | 
              | Fibrocartilage | 
              | Fibrocystic Breast Disease | 
              | Fibrocystic Mastopathy use Fibrocystic Breast Disease | 
              | Fibrodysplasia Ossificans Progressiva use Myositis Ossificans | 
              | Fibrofolliculomas with Trichodiscomas and Acrochordons use Birt-Hogg-Dube Syndrome | 
              | Fibroid use Leiomyoma | 
              | Fibroid Tumor use Leiomyoma | 
              | Fibroid Uterus use Leiomyoma | 
              | Fibroids, Uterine use Leiomyoma | 
              | Fibroin use Fibroins | 
              | Fibroins | 
              | Fibroma | 
              | Fibroma Virus, Rabbit | 
              | Fibroma, Desmoplastic | 
              | Fibroma, Ossifying | 
              | Fibroma, Shope use Tumor Virus Infections | 
              | Fibroma, Uterine use Leiomyoma | 
              | Fibromatosis use Fibroma | 
              | Fibromatosis Virus of Rabbits use Fibroma Virus, Rabbit | 
              | Fibromatosis, Abdominal | 
              | Fibromatosis, Aggressive | 
              | Fibromatosis, Gingival | 
              | Fibromuscular Dysplasia | 
              | Fibromyalgia | 
              | Fibromyoma use Leiomyoma | 
              | Fibromyxoma use Fibroma | 
              | Fibronectin Receptors use Receptors, Fibronectin | 
              | Fibronectins | 
              | Fibrosarcoma | 
              | Fibrosis | 
              | Fibrosis, Liver use Liver Cirrhosis | 
              | Fibrositis use Fibromyalgia | 
              | Fibrous Dysplasia of Bone | 
              | Fibrous Dysplasia, Monostotic | 
              | Fibrous Dysplasia, Polyostotic | 
              | Fibrous Mesothelioma use Solitary Fibrous Tumor, Pleural | 
              | Fibula | 
              | Fibular Nerve use Peroneal Nerve | 
              | Ficain | 
              | Ficin use Ficain | 
              | Ficoll | 
              | Fictional Works | 
              | Ficus | 
              | Ficus indica use Opuntia ficus | 
              | Ficus religiosa | 
              | Ficus venosa | 
              | Ficusin | 
              | Fiducial Markers | 
              | Field Bindweed use Convolvulus arvensis | 
              | Field Dependence-Independence | 
              | Field Flow Fractionation use Fractionation, Field Flow | 
              | Field Gumweed use Grindelia robusta | 
              | Field Hockey use Hockey | 
              | Field Horsetail use Equisetum arvense | 
              | Field Mushroom use Agaricus campestris | 
              | Field Sorrel use Rumex acetosa | 
              | Fierce Thornapple use Datura ferox | 
              | Fifth Cranial Nerve use Trigeminal Nerve | 
              | Fifth Cranial Nerve Diseases use Trigeminal Nerve Diseases | 
              | Fifth Disease use Erythema Infectiosum | 
              | Fifty Milesimal | 
              | Fights about Water use Water Conflicts | 
              | FIGLU use Formiminoglutamic Acid | 
              | FIGLU Test | 
              | Figs use Ficus | 
              | Figural Aftereffect | 
              | Figwort Betony use Scrophularia | 
              | Fiji | 
              | Fijivirus use Reoviridae | 
              | Filamentous Bacteriophages use Inovirus | 
              | Filamins | 
              | Filaria bancrofti use Wuchereria bancrofti | 
              | Filaria demarquayi use Mansonella | 
              | Filaria ozzardi use Mansonella | 
              | Filaria sanguinis hominis use Wuchereria bancrofti | 
              | Filarial Elephantiasis use Elephantiasis, Filarial | 
              | Filariasis | 
              | Filariasis, Lymphatic use Elephantiasis, Filarial | 
              | Filaricides | 
              | Filarioidea | 
              | Filarioidea Infections use Filariasis | 
              | Filbert use Corylus | 
              | Filing | 
              | Filipendula | 
              | Filipin | 
              | Filipin III use Filipin | 
              | Filix-mas | 
              | Fillaea suaveolens use Erythrophleum suaveolens | 
              | Filling Station | 
              | Film Badge Dosimetry use Film Dosimetry | 
              | Film Dosimetry | 
              | Film, X-Ray use X-Ray Film | 
              | Film-Screen Systems, X-Ray use X-Ray Intensifying Screens | 
              | Filopodia use Pseudopodia | 
              | Filoviridae | 
              | Filoviridae Infections | 
              | Filter Washing | 
              | Filterable Total Residual use Dissolved Solids | 
              | Filtering Surgery | 
              | Filters | 
              | Filtration | 
              | Filtration Agent use Clarifying Agents | 
              | Filtration Agents use Clarifying Agents | 
              | Filtration Column use Contact Column | 
              | Filtration Media | 
              | Filtration Surgery use Filtering Surgery | 
              | Filum Terminale use Cauda Equina | 
              | Fimbria, Brain use Fornix, Brain | 
              | Fimbriae Proteins | 
              | Fimbriae, Bacterial | 
              | Fimbrial Adhesins use Adhesins, Bacterial | 
              | Fin Whale | 
              | Financial Aspects use Capital Financing | 
              | Financial Assistance use Economic Cooperation | 
              | Financial Audit | 
              | Financial Contributions use Gift Giving | 
              | Financial Disclosure use Disclosure | 
              | Financial Insolvency use Bankruptcy | 
              | Financial Management | 
              | Financial Management, Hospital | 
              | Financial Policy | 
              | Financial Resources use Financial Resources in Health | 
              | Financial Resources for Health use Financial Resources in Health | 
              | Financial Resources in Health | 
              | Financial Risk Sharing use Risk Sharing, Financial | 
              | Financial Support | 
              | Financial Support in Health use Healthcare Financing | 
              | Financial Support, Health use Healthcare Financing | 
              | Financing of Congresses and Scientific Meetings | 
              | Financing, Capital use Capital Financing | 
              | Financing, Construction | 
              | Financing, Government | 
              | Financing, Organized | 
              | Financing, Personal | 
              | Financing, Public use Financing, Government | 
              | Financing, Social Security use Social Security | 
              | Finasteride | 
              | Finches | 
              | Finger Agnosia use Agnosia | 
              | Finger Bones use Finger Phalanges | 
              | Finger Injuries | 
              | Finger Joint | 
              | Finger Phalanges | 
              | Finger Replacement Arthroplasty use Arthroplasty, Replacement, Finger | 
              | Finger-Agnosia-Left-Right-Confusion-Acalculia-Agraphia use Gerstmann Syndrome | 
              | Fingernails use Nails | 
              | Fingerprints use Dermatoglyphics | 
              | Fingerprints, Nucleotide use Nucleotide Mapping | 
              | Fingerprints, Peptide use Peptide Mapping | 
              | Fingers | 
              | Fingersucking | 
              | Finite Element Analysis | 
              | Finkel-Biskis-Jinkins murine sarcoma virus use Sarcoma Viruses, Murine | 
              | Finland | 
              | Finless Porpoise use Porpoises | 
              | FIPV use Coronavirus, Feline | 
              | Fir Tree use Abies | 
              | Fir, Balsam use Abies | 
              | Fir, Chinese use Cunninghamia | 
              | Fir, Douglas use Pseudotsuga | 
              | Fire | 
              | Fire Chemistry | 
              | Fire Extinguishing Agent | 
              | Fire Extinguishing Methods | 
              | Fire Extinguishing Systems | 
              | Fire Hydrants use Hydrants | 
              | Fire Prevention and Protection | 
              | Fire Pumps use Hydrants | 
              | Fire Resistant Buildings | 
              | Fire Retardants use Flame Retardants | 
              | Fire Tetrahedron | 
              | Fire Theory | 
              | Fire Triangle | 
              | Firearms | 
              | Firebrush use Bassia scoparia | 
              | Firefighters | 
              | Fireflies | 
              | Firefly Luciferin | 
              | Firemen use Firefighters | 
              | Firemen and Policemen in Disasters | 
              | Fireproof use Fireproof Material | 
              | Fireproof Material | 
              | Fireproofing Agents use Flame Retardants | 
              | Fires | 
              | Firesetting Behavior | 
              | Firethorn use Pyracantha | 
              | Firewall | 
              | Fireweed use Bassia scoparia | 
              | Firming Agent use Firming Agents | 
              | Firming Agents | 
              | First Aid | 
              | First Cranial Nerve use Olfactory Nerve | 
              | First Cranial Nerve Diseases use Olfactory Nerve Diseases | 
              | First Milk use Colostrum (Homeopathy) | 
              | First Prescription | 
              | First-Pass Radionuclide Angiography use Ventriculography, First-Pass | 
              | First-Pass Ventriculography use Ventriculography, First-Pass | 
              | Fiscal Analysis of Products | 
              | Fiscal Policy use Financial Policy | 
              | Fischer Rats use Rats, Inbred F344 | 
              | Fish Berry use Cocculus indicus | 
              | Fish Culture | 
              | Fish Diseases | 
              | Fish Flour | 
              | Fish Flour Industry | 
              | Fish Liver Oils use Fish Oils | 
              | Fish Oils | 
              | Fish Products | 
              | Fish Proteins | 
              | FISH Technique use In Situ Hybridization, Fluorescence | 
              | Fish Venoms | 
              | Fisher Syndrome use Miller Fisher Syndrome | 
              | Fisheries | 
              | Fishes | 
              | Fishes, Poisonous | 
              | Fishing Industry | 
              | Fishing Industry Effluents | 
              | Fission Yeast use Schizosaccharomyces | 
              | Fission Yeast Proteins use Schizosaccharomyces pombe Proteins | 
              | Fissure in Ano | 
              | Fissure Sealants use Pit and Fissure Sealants | 
              | Fissures, Dental use Dental Fissures | 
              | Fistula | 
              | Fistula, Carotid Artery-Cavernous Sinus use Carotid-Cavernous Sinus Fistula | 
              | FITC use Fluorescein-5-isothiocyanate | 
              | Fitness Centers | 
              | FIV use Immunodeficiency Virus, Feline | 
              | Five Leaves use Ampelopsis quinquefolia | 
              | Five-Faced Bishop use Adoxa moschatellina | 
              | Five-Flowered Gentian use Gentiana quinquefolia | 
              | Fixation Devices, External use External Fixators | 
              | Fixation Devices, Internal use Internal Fixators | 
              | Fixation Disparity use Vision Disparity | 
              | Fixation, Ocular | 
              | Fixation, Tissue use Tissue Fixation | 
              | Fixatives | 
              | Fixed Action Pattern use Instinct | 
              | Fixed Bed | 
              | Fixed Bridge use Denture, Partial, Fixed | 
              | Fixed Partial Denture use Denture, Partial, Fixed | 
              | Fixed Source | 
              | FK506 Binding Protein use Tacrolimus Binding Proteins | 
              | FK506 Binding Proteins use Tacrolimus Binding Proteins | 
              | FK506-Binding Protein 1A use Tacrolimus Binding Protein 1A | 
              | FKBP12 use Tacrolimus Binding Protein 1A | 
              | Flaccid Muscle Tone use Muscle Hypotonia | 
              | Flacourtia use Flacourtiaceae | 
              | Flacourtiaceae | 
              | Flagella | 
              | Flagellin | 
              | Flail Chest | 
              | Flake use Flocculus | 
              | Flame | 
              | Flame Emission | 
              | Flame Ionization | 
              | Flame Retardants | 
              | Flame Spectrophotometers | 
              | Flammable Substances, Products and Materials | 
              | Flammulina | 
              | Flank Pain | 
              | Flanking Repeat Sequences use Terminal Repeat Sequences | 
              | Flap Endonucleases | 
              | Flash Flood | 
              | Flat Sedge use Cyperus | 
              | Flat-Leaved Vanilla use Vanilla aromatica | 
              | Flatfishes | 
              | Flatfoot | 
              | Flatsedge use Cyperus | 
              | Flatulence | 
              | Flatus use Flatulence | 
              | Flatworms use Platyhelminths | 
              | Flavanones | 
              | Flaveria | 
              | Flavin Mononucleotide | 
              | Flavin Mononucleotide Reductase use FMN Reductase | 
              | Flavin-Adenine Dinucleotide | 
              | Flavins | 
              | Flaviviridae | 
              | Flaviviridae Infections | 
              | Flavivirus | 
              | Flavivirus Infections | 
              | Flavobacteriaceae | 
              | Flavobacteriaceae Infections | 
              | Flavobacterium | 
              | Flavobacterium meningosepticum use Chryseobacterium | 
              | Flavodoxin | 
              | Flavones | 
              | Flavonoids | 
              | Flavonolignans | 
              | Flavonols | 
              | Flavophospholipols use Bambermycins | 
              | Flavoproteins | 
              | Flavor Intensifier | 
              | Flavoring Agents | 
              | Flavotoxin A use Bongkrekic Acid | 
              | Flavoxate | 
              | Flavum Iodatum use Sulphur Iodatum | 
              | Flavus | 
              | Flax | 
              | Flax, New Zealand use Agavaceae | 
              | Flaxseed use Flax | 
              | Flaxseed Oil use Linseed Oil | 
              | Flea Infestations | 
              | Fleas use Siphonaptera | 
              | Flecainide | 
              | Flecainide Acetate use Flecainide | 
              | Fleroxacin | 
              | Flesh-Eating Bacteria use Streptococcus pyogenes | 
              | Fletcher Factor use Prekallikrein | 
              | Flexibacter | 
              | Flexibility use Pliability | 
              | Flexibility, Waxy use Catalepsy | 
              | Flexible Connections use Flexible Installations | 
              | Flexible Installations | 
              | Flexiviridae | 
              | Flexor Tendon Entrapment use Trigger Finger Disorder | 
              | fli-1 Transcription Factor use Proto-Oncogene Protein c-fli-1 | 
              | Flicker Fusion | 
              | Flies, True use Diptera | 
              | Flight Reaction use Escape Reaction | 
              | Flight Suits use Space Suits | 
              | Flight, Animal | 
              | Floating Population | 
              | Floating Root | 
              | Floc use Flocculus | 
              | Flocculant Sedimentation | 
              | Flocculants (Water Treatment) use Coagulants (Water Treatment) | 
              | Flocculation | 
              | Flocculation Agent use Flocculation Agents | 
              | Flocculation Agents | 
              | Flocculation Agents (Water Treatment) use Coagulants (Water Treatment) | 
              | Flocculation Tests | 
              | Flocculators | 
              | Floccule use Flocculus | 
              | Floccules use Flocculus | 
              | Flocculi use Flocculus | 
              | Flocculus | 
              | Flood | 
              | Flood Alarm Level | 
              | Flood Control | 
              | Flood Forecasting | 
              | Flood Proofing | 
              | Flood Regulation use Flood Control | 
              | Flood Routing | 
              | Flood Tide use Rising Tide | 
              | Flood Wave | 
              | Flood-Bypass Channel | 
              | Flood-Tide | 
              | Flooding Therapy use Implosive Therapy | 
              | Flooding, Catastrophic use Floods | 
              | Flooding, Imaginal use Implosive Therapy | 
              | Floodplain Zoning | 
              | Floods | 
              | Floor of Mouth use Mouth Floor | 
              | Floor Waxes use Polishes (Health Surveillance) | 
              | Floorcoverings use Floors and Floorcoverings | 
              | Floors and Floorcoverings | 
              | Floppy Mitral Valve use Mitral Valve Prolapse | 
              | Flor de piedra | 
              | Flora | 
              | Floral Drugs use Flower Essences | 
              | Floral Remedies use Flower Essences | 
              | Floral Remedy use Flower Essences | 
              | Florida | 
              | Florida Manatee use Trichechus manatus | 
              | Florida Panther use Puma | 
              | Florigen | 
              | Florimycin use Viomycin | 
              | Flotation | 
              | Flotation Thickening | 
              | Flounder | 
              | Flour | 
              | Flour Benefactor | 
              | Flour Industry | 
              | Flow Augmentation | 
              | Flow Cytometry | 
              | Flow gauging use Flow Measurements | 
              | Flow Injection Analysis | 
              | Flow Measurements | 
              | Flow Mechanics | 
              | Flow Meter use Flowmeters | 
              | Flow Meters use Flowmeters | 
              | Flow Microfluorimetry use Flow Cytometry | 
              | Flow Profiles | 
              | Flow, Pulsating use Pulsatile Flow | 
              | Flow-Reducing Valves use Water Valves | 
              | Flowcharts (Computer) use Software Design | 
              | Flower Essence use Flower Essences | 
              | Flower Essence Therapy use Flower Essences | 
              | Flower Essences | 
              | Flower Remedies use Flower Essences | 
              | Flower Remedy use Flower Essences | 
              | Flower Therapies use Flower Essences | 
              | Flower Therapy use Flower Essences | 
              | Flowering Dogwood use Cornus florida | 
              | Flowering Tops | 
              | Flowers | 
              | Flowmeter use Flowmeters | 
              | Flowmeters | 
              | Flowmetry use Rheology | 
              | Flowmetry, Laser-Doppler use Laser-Doppler Flowmetry | 
              | Floxacillin | 
              | Floxuridine | 
              | Flubenisolone use Betamethasone | 
              | Flubenisolonvalerate use Betamethasone Valerate | 
              | Flucloxacillin use Floxacillin | 
              | Fluconazole | 
              | Flucytosine | 
              | Fludeoxyglucose F 18 use Fluorodeoxyglucose F18 | 
              | Fludrocortisone | 
              | Flufenamic Acid | 
              | Flufenazin use Fluphenazine | 
              | Flugestone use Flurogestone Acetate | 
              | Fluid Balance use Water-Electrolyte Balance | 
              | Fluid Shifts | 
              | Fluid Therapy | 
              | Fluidized Bed | 
              | Fluids and Secretions | 
              | Flukes use Trematoda | 
              | Flumazenil | 
              | Flumazepil use Flumazenil | 
              | Flumethasone | 
              | Flunarizine | 
              | Flunitrazepam | 
              | Fluocinolide use Fluocinonide | 
              | Fluocinolone Acetonide | 
              | Fluocinonide | 
              | Fluocortolone | 
              | Fluocortolone Caproate use Fluocortolone | 
              | Fluocortolone Pivalate use Fluocortolone | 
              | Fluon use Polytetrafluoroethylene | 
              | Fluopromazine use Triflupromazine | 
              | Fluoren-2-ylacetamide use 2-Acetylaminofluorene | 
              | Fluorenes | 
              | Fluorescamine | 
              | Fluorescein | 
              | Fluorescein Angiography | 
              | Fluorescein Sodium use Fluorescein | 
              | Fluorescein-5-isothiocyanate | 
              | Fluoresceins | 
              | Fluorescence | 
              | Fluorescence Angiography use Fluorescein Angiography | 
              | Fluorescence Anisotropy use Fluorescence Polarization | 
              | Fluorescence Microscopy use Microscopy, Fluorescence | 
              | Fluorescence Microscopy, Multiphoton use Microscopy, Fluorescence, Multiphoton | 
              | Fluorescence Photobleaching Recovery use Fluorescence Recovery After Photobleaching | 
              | Fluorescence Polarization | 
              | Fluorescence Polarization Immunoassay | 
              | Fluorescence Recovery After Photobleaching | 
              | Fluorescence Resonance Energy Transfer | 
              | Fluorescence Spectrophotometry use Spectrometry, Fluorescence | 
              | Fluorescence Spectroscopy use Spectrometry, Fluorescence | 
              | Fluorescence-Activated Cell Sorting use Flow Cytometry | 
              | Fluorescent Antibody Technique | 
              | Fluorescent Antibody Technique, Direct | 
              | Fluorescent Antibody Technique, Indirect | 
              | Fluorescent Antinuclear Antibodies use Antibodies, Antinuclear | 
              | Fluorescent Antinuclear Antibody Test use Fluorescent Antibody Technique | 
              | Fluorescent Dyes | 
              | Fluorescent in Situ Hybridization use In Situ Hybridization, Fluorescence | 
              | Fluorescent Probes use Fluorescent Dyes | 
              | Fluorescent Protein Tracing use Fluorescent Antibody Technique | 
              | Fluorescent Treponemal Antibody-Absorption Test | 
              | Fluoricum Acidum | 
              | Fluoridation | 
              | Fluoride Poisoning | 
              | Fluoride Varnishes use Fluorides, Topical | 
              | Fluorides | 
              | Fluorides, Topical | 
              | Fluorimetry use Fluorometry | 
              | Fluorinated Hydrocarbons use Hydrocarbons, Fluorinated | 
              | Fluorinated Polymers use Fluorocarbon Polymers | 
              | Fluorinated Steroids use Steroids, Fluorinated | 
              | Fluorination use Halogenation | 
              | Fluorine | 
              | Fluorine Compounds | 
              | Fluorine Radioisotopes | 
              | Fluorine-19 Magnetic Resonance Imaging | 
              | Fluoroacetates | 
              | Fluorobenzenes | 
              | Fluorocarbon Aerosols use Chlorofluorocarbons, Methane | 
              | Fluorocarbon Emulsions use Fluorocarbons | 
              | Fluorocarbon Polymers | 
              | Fluorocarbon Propellants use Chlorofluorocarbons, Methane | 
              | Fluorocarbon Resins use Fluorocarbon Polymers | 
              | Fluorocarbons | 
              | Fluorochloroxacillin use Floxacillin | 
              | Fluorochromes use Fluorescent Dyes | 
              | Fluorodeoxyglucose F18 | 
              | Fluorodeoxyuridine use Floxuridine | 
              | Fluorodeoxyuridylate | 
              | Fluorodexamethasone use Flumethasone | 
              | Fluorodinitrobenzene use Dinitrofluorobenzene | 
              | Fluoroimmunoassay | 
              | Fluorometholone | 
              | Fluorometry | 
              | Fluorophotometry | 
              | Fluoroquinolones | 
              | Fluoroscopy | 
              | Fluorosis, Dental | 
              | Fluorouracil | 
              | Fluortriamcinolone Acetonide use Fluocinolone Acetonide | 
              | Fluostigmine use Isoflurophate | 
              | Fluoxetine | 
              | Fluoximesteron use Fluoxymesterone | 
              | Fluoxymesterone | 
              | Flupenthixol | 
              | Fluphenazine | 
              | Fluprednisolone | 
              | Flupyrazapon use Zolazepam | 
              | Flurandrenolide use Flurandrenolone | 
              | Flurandrenolone | 
              | Flurazepam | 
              | Flurbiprofen | 
              | Fluridrazepam use Flunitrazepam | 
              | Flurogestone use Flurogestone Acetate | 
              | Flurogestone Acetate | 
              | Flurothyl | 
              | Flush Toilets use Sanitary Devices | 
              | Flushing | 
              | Fluspirilene | 
              | Flutamide | 
              | Fluvial Erosion | 
              | Fluvial Pollution use River Pollution | 
              | Fluvoxamine | 
              | Fluxmeter use Flowmeters | 
              | Fluxmeters use Flowmeters | 
              | Fluxroot use Asclepias tuberosa | 
              | Fly Agaric use Agaricus muscarius | 
              | Fly-Trap Dogbane use Apocynum androsaemifolium | 
              | Flycatchers use Songbirds | 
              | Flying Foxes use Chiroptera | 
              | Flytrap use Sarraceniaceae | 
              | FMN use Flavin Mononucleotide | 
              | FMN Reductase | 
              | FMRFamide | 
              | fMRI use Magnetic Resonance Imaging | 
              | fms Genes use Genes, fms | 
              | fms Oncogene Protein gp120 use Oncogene Protein gp140(v-fms) | 
              | fms Oncogene Protein gp140 use Oncogene Protein gp140(v-fms) | 
              | fms Proto-Oncogene Protein use Receptor, Macrophage Colony-Stimulating Factor | 
              | fms-Like Tyrosine Kinase 3 | 
              | Foam Cells | 
              | Foam Retardants use Antifoaming Agents | 
              | Foaming Agent use Foaming Agents | 
              | Foaming Agents | 
              | Foamy Virus use Spumavirus | 
              | Focal Adhesion Kinase 1 | 
              | Focal Adhesion Kinase 2 | 
              | Focal Adhesion Protein-Tyrosine Kinase Family use Focal Adhesion Protein-Tyrosine Kinases | 
              | Focal Adhesion Protein-Tyrosine Kinases | 
              | Focal Adhesions | 
              | Focal Contacts use Focal Adhesions | 
              | Focal Dermal Hypoplasia | 
              | Focal Dystonia use Dystonic Disorders | 
              | Focal Epithelial Hyperplasia | 
              | Focal Infection | 
              | Focal Infection, Dental | 
              | Focal Motor Epilepsy use Epilepsy, Partial, Motor | 
              | Focal Nodular Hyperplasia | 
              | Focal Seizure Disorder use Epilepsies, Partial | 
              | Focal Sensory Seizure use Epilepsy, Partial, Sensory | 
              | Focus Groups | 
              | Focusing, Ocular use Fixation, Ocular | 
              | Foeniculum | 
              | Foeniculum sativum | 
              | Foeniculum vulgare use Foeniculum sativum | 
              | Foetid Pothos use Ictodes foetida | 
              | Fog use Weather | 
              | Fog (Environmental Health) | 
              | Fog Collectors use Mist Catchment | 
              | Fog Fever use Pneumonia, Atypical Interstitial, of Cattle | 
              | Fogarty Balloon Catheterization use Balloon Embolectomy | 
              | FOIA Requests use Access to Information | 
              | Folate Conjugase use gamma-Glutamyl Hydrolase | 
              | Folate Polyglutamates use Pteroylpolyglutamic Acids | 
              | Folate Receptor 1 | 
              | Folate Receptor 2 | 
              | Folate Receptors, GPI-Anchored | 
              | Folic Acid | 
              | Folic Acid Antagonists | 
              | Folic Acid Deficiency | 
              | Folic Acid Reductase use Tetrahydrofolate Dehydrogenase | 
              | Folic Acid Transporters | 
              | Folie a Deux use Shared Paranoid Disorder | 
              | Folie a Trois use Shared Paranoid Disorder | 
              | Folinic Acid use Leucovorin | 
              | Folk Medicine use Medicine, Traditional | 
              | Folk Remedies use Medicine, Traditional | 
              | Folklore | 
              | Follicle Stimulating Hormone | 
              | Follicle Stimulating Hormone, beta Subunit | 
              | Follicle Stimulating Hormone, Human | 
              | Follicle Stimulating Hormone, Inappropriate Secretion use Hyperpituitarism | 
              | Follicle-Stimulating Hormone Receptors use Receptors, FSH | 
              | Follicle-Stimulating Hormone, alpha Subunit use Glycoprotein Hormones, alpha Subunit | 
              | Follicle-Stimulating Hormone, Human Urine use Urofollitropin | 
              | Follicular Atresia | 
              | Follicular Cyst | 
              | Follicular Dendritic Cell Sarcoma use Dendritic Cell Sarcoma, Follicular | 
              | Follicular Dendritic Cells use Dendritic Cells, Follicular | 
              | Follicular Fluid | 
              | Follicular Lymphoma use Lymphoma, Follicular | 
              | Follicular Phase | 
              | Folliculinum | 
              | Folliculitis | 
              | Follistatin | 
              | Follistatin-Related Proteins | 
              | Follow-Up Studies | 
              | Folyl Conjugate Synthetase use gamma-Glutamyl Hydrolase | 
              | Fomes use Coriolaceae | 
              | Fomites | 
              | Fomitopsis use Coriolaceae | 
              | Fonofos | 
              | Fontan Operation use Fontan Procedure | 
              | Fontan Procedure | 
              | Food | 
              | Food Additives | 
              | Food Adulteration use Food Contamination | 
              | Food Advertisement use Food Publicity | 
              | Food Advocacy use Nutritional Rights | 
              | Food Allergy use Food Hypersensitivity | 
              | Food Analysis | 
              | Food and Agricultural Organization, United Nations use United Nations | 
              | Food and Beverages | 
              | Food and Drug Administration (U.S.) use United States Food and Drug Administration | 
              | Food and Nutrition Education | 
              | Food and Nutrition Foundation of Central America and Panama | 
              | Food Assistance | 
              | Food Browning use Maillard Reaction | 
              | Food Chain | 
              | Food Chemistry | 
              | Food Colorants use Food Coloring Agents | 
              | Food Coloring Agents | 
              | Food Composition | 
              | Food Consumption | 
              | Food Containers use Food Packaging | 
              | Food Contamination | 
              | Food Contamination, Radioactive | 
              | Food Demand | 
              | Food Deprivation | 
              | Food Diaries use Diet Records | 
              | Food Dispensers, Automatic | 
              | Food Economics | 
              | Food Fads use Diet Fads | 
              | Food Good Manufacturing Practices use Good Manufacturing Practices | 
              | Food Guide | 
              | Food Habits | 
              | Food Handling | 
              | Food Hygiene | 
              | Food Hypersensitivity | 
              | Food Industry | 
              | Food Industry Complexes use Agribusiness | 
              | Food Inspection | 
              | Food Intake use Eating | 
              | Food Intake during Pregnancy use Prenatal Nutrition | 
              | Food Intake Regulation use Appetite Regulation | 
              | Food Intake, Prenatal use Prenatal Nutrition | 
              | Food Interactions use Food-Drug Interactions | 
              | Food Irradiation | 
              | Food Labeling | 
              | Food Law use Nutritional Rights | 
              | Food Laws use Legislation, Food | 
              | Food Losses | 
              | Food Microbiology | 
              | Food Mixtures | 
              | Food of the Gods use Asafoetida (Homeopathy) | 
              | Food Packaging | 
              | Food Parasitology | 
              | Food Planning | 
              | Food Plants use Plants, Edible | 
              | Food Poisoning use Foodborne Diseases | 
              | Food Policy use Nutrition Policy | 
              | Food Pollutants, Chemical | 
              | Food Pollutants, Inorganic | 
              | Food Preferences | 
              | Food Preservation | 
              | Food Preservatives | 
              | Food Processing use Food Handling | 
              | Food Production | 
              | Food Promotion | 
              | Food Publicity | 
              | Food Quality | 
              | Food Quality Standards | 
              | Food Refrigeration use Cooled Foods | 
              | Food Relief | 
              | Food Resources | 
              | Food Rights use Nutritional Rights | 
              | Food Safety | 
              | Food Samples | 
              | Food Sanitation use Food Hygiene | 
              | Food Security | 
              | Food Selection use Food Preferences | 
              | Food Service, Hospital | 
              | Food Services | 
              | Food Storage | 
              | Food Storing use Food Storage | 
              | Food Supplements use Dietary Supplements | 
              | Food Supplements for Lactating Mothers use Foods for Pregnant and Nursing Mothers | 
              | Food Supplements for Nursing Mothers use Foods for Pregnant and Nursing Mothers | 
              | Food Supplements for Pregnant Women use Foods for Pregnant and Nursing Mothers | 
              | Food Supply | 
              | Food Taboo | 
              | Food Technology | 
              | Food Technology Coadjuvants | 
              | Food Wastefulness | 
              | Food Web use Food Chain | 
              | Food with Allegation of Functional use Functional Food | 
              | Food, Canned use Food, Preserved | 
              | Food, Dried use Food, Preserved | 
              | Food, Drug and Cosmetic Act use Legislation, Drug | 
              | Food, Formulated | 
              | Food, Fortified | 
              | Food, Frozen use Frozen Foods | 
              | Food, Genetically Modified | 
              | Food, Health use Health Food | 
              | Food, Infant use Infant Food | 
              | Food, Irradiated use Food Irradiation | 
              | Food, Organic | 
              | Food, Preserved | 
              | Food, Supplemented use Food, Fortified | 
              | Food-Drug Interactions | 
              | Food-Processing Industry | 
              | Foodborne Diseases | 
              | Foods Containing Coconut | 
              | Foods Containing Peanuts | 
              | Foods Equipment | 
              | Foods for Persons Engaged in Physical Activities | 
              | Foods for Physical Activity Practicers use Foods for Persons Engaged in Physical Activities | 
              | Foods for Physical Activity-Engaged Persons use Foods for Persons Engaged in Physical Activities | 
              | Foods for Pregnant and Nursing Mothers | 
              | Foods for Pregnant and Nursing Women use Foods for Pregnant and Nursing Mothers | 
              | Foods for Pregnant Women and Nursing Mothers use Foods for Pregnant and Nursing Mothers | 
              | Foods Modified by Air Incorporation | 
              | Foods of Animal Origin | 
              | Foods of Confectionery | 
              | Foods with Allegation of Functional use Functional Food | 
              | Foods with Allegation of Functional Properties use Functional Food | 
              | Foods, Specialized | 
              | Fool's Cicely use Aethusa cynapium | 
              | Fool's Parsley use Aethusa cynapium | 
              | Foot | 
              | Foot Bones | 
              | Foot Deformities | 
              | Foot Deformities, Acquired | 
              | Foot Deformities, Congenital | 
              | Foot Dermatoses | 
              | Foot Diseases | 
              | Foot Injuries | 
              | Foot Joints | 
              | Foot Orthoses | 
              | Foot Rot | 
              | Foot Ulcer | 
              | Foot Ulcer, Diabetic use Diabetic Foot | 
              | Foot Valves | 
              | Foot-and-Mouth Disease | 
              | Foot-and-Mouth Disease Virus | 
              | Football | 
              | Footprints, DNA use DNA Footprinting | 
              | Footprints, Protein use Protein Footprinting | 
              | For-Profit Insurance Plans | 
              | Foramen Magnum | 
              | Foramen of Monro use Cerebral Ventricles | 
              | Foramen Ovale | 
              | Foramen Ovale, Patent | 
              | Foraminifera | 
              | Foraminotomy | 
              | Forbes Disease use Glycogen Storage Disease Type III | 
              | Force Feeding use Enteral Nutrition | 
              | Force Microscopy use Microscopy, Atomic Force | 
              | Force, Vital use Vital Force in Homeopathy | 
              | Forced Expiratory Flow 0.2-1.2 use Maximal Expiratory Flow Rate | 
              | Forced Expiratory Flow 025-075 Percent use Maximal Midexpiratory Flow Rate | 
              | Forced Expiratory Flow 200-1200 use Maximal Expiratory Flow Rate | 
              | Forced Expiratory Flow Rates | 
              | Forced Expiratory Volume | 
              | Forced Vital Capacity use Vital Capacity | 
              | Forced Vital Capacity, Timed use Forced Expiratory Volume | 
              | Forceps use Surgical Instruments | 
              | Forearm | 
              | Forearm Injuries | 
              | Forebrain use Prosencephalon | 
              | Forebrain Commissures use Telencephalic Commissures | 
              | Forecasting | 
              | Forefoot, Human | 
              | Forehead | 
              | Foreign Aid use International Cooperation | 
              | Foreign Bodies | 
              | Foreign Medical Graduates | 
              | Foreign Policy use International Acts | 
              | Foreign Professional Personnel | 
              | Foreign-Body Granuloma use Granuloma, Foreign-Body | 
              | Foreign-Body Migration | 
              | Foreign-Body Reaction | 
              | Forel-Ule Scale | 
              | Forelimb | 
              | Forensic Anthropology | 
              | Forensic Ballistics | 
              | Forensic Dentistry | 
              | Forensic Genetics | 
              | Forensic Medicine | 
              | Forensic Nursing | 
              | Forensic Pathology | 
              | Forensic Psychiatry | 
              | Forensic Sciences | 
              | Forensic Toxicology | 
              | Foreshore use Intertidal Zone | 
              | Foreskin | 
              | Forest Conservation use Forests | 
              | Forest Fires use Wildfire | 
              | Forest Reserves use Forests | 
              | Forest Resources use Forests | 
              | Forestier Disease use Hyperostosis, Diffuse Idiopathic Skeletal | 
              | Forestier-Certonciny Syndrome use Polymyalgia Rheumatica | 
              | Forestry | 
              | Forests | 
              | Forests (Environmental Health) use Forests | 
              | Forgiveness | 
              | Forkhead Box A1 Protein use Hepatocyte Nuclear Factor 3-alpha | 
              | Forkhead Box A2 Protein use Hepatocyte Nuclear Factor 3-beta | 
              | Forkhead Box A3 Protein use Hepatocyte Nuclear Factor 3-gamma | 
              | Forkhead Transcription Factors | 
              | Form Perception | 
              | Formaldehyde | 
              | Formalin Test use Pain Measurement | 
              | Formalinum | 
              | Formamides | 
              | Formamidopyrimidine-DNA Glycosylase use DNA-Formamidopyrimidine Glycosylase | 
              | Formate Dehydrogenases | 
              | Formate Hydrogenlyases use Formate Dehydrogenases | 
              | Formate-Tetrahydrofolate Ligase | 
              | Formates | 
              | Formazans | 
              | Former Yugoslav Republic of Macedonia use Macedonia (Republic) | 
              | Formic Acid Esters | 
              | Formica rufa | 
              | Formicicum Acidum | 
              | Formicoidea Venoms use Ant Venoms | 
              | Formiminoglutamic Acid | 
              | Formiminoglutamic Acid Test use FIGLU Test | 
              | Formocresols | 
              | Formosa use Taiwan | 
              | Forms | 
              | Forms and Records Control | 
              | Formularies | 
              | Formularies as Topic | 
              | Formularies, Dental | 
              | Formularies, Homeopathic | 
              | Formularies, Hospital | 
              | Formulary Committee use Pharmacy and Therapeutics Committee | 
              | Formulary, National use Pharmacopoeias as Topic | 
              | Formulation and Canning of Detergents and Disinfectants | 
              | Formulation and Canning of Pesticides | 
              | Formulation and Canning of Substances, Products and Materials | 
              | Formulation of Sanitizing Products use Additives in Sanitizing Products | 
              | Formycins | 
              | Formyltetrahydrofolates | 
              | Formyltetrahydrofolic Acids use Formyltetrahydrofolates | 
              | Formylum Trichloratum use Chloroformium | 
              | Fornix, Brain | 
              | Forskolin use Colforsin | 
              | Forssman Antigen | 
              | Forster Resonance Energy Transfer use Fluorescence Resonance Energy Transfer | 
              | Forsythia | 
              | Fortunella use Rutaceae | 
              | Fos B Protein use Proto-Oncogene Proteins c-fos | 
              | fos Genes use Genes, fos | 
              | fos Oncogene Proteins use Oncogene Proteins v-fos | 
              | fos Proto-Oncogene Proteins use Proto-Oncogene Proteins c-fos | 
              | fos-Associated Protein p39 use Proto-Oncogene Proteins c-jun | 
              | Fos-Related Antigen-2 | 
              | Fos-Related Antigens use Proto-Oncogene Proteins c-fos | 
              | Foscarnet | 
              | Fosenopril use Fosinopril | 
              | Fosfomycin | 
              | Fosinopril | 
              | Fossil Fuels | 
              | Fossils | 
              | Foster Home Care | 
              | Foster-Kennedy Syndrome use Optic Nerve Diseases | 
              | Foundation Makeup use Beauty Lotions | 
              | Foundations | 
              | Foundations (Soil Engineering) | 
              | Founder Effect | 
              | Foundry | 
              | Fountaingrass use Pennisetum | 
              | Four Corners Virus use Sin Nombre virus | 
              | Four-Dimensional Computed Tomography | 
              | Fourier Analysis | 
              | Fourier Series use Fourier Analysis | 
              | Fourier Transform use Fourier Analysis | 
              | Fourier Transform Infrared Spectroscopy use Spectroscopy, Fourier Transform Infrared | 
              | Fournier Disease use Fournier Gangrene | 
              | Fournier Gangrene | 
              | Fournier's Gangrene use Fournier Gangrene | 
              | Fourth Cranial Nerve use Trochlear Nerve | 
              | Fourth Cranial Nerve Diseases use Trochlear Nerve Diseases | 
              | Fourth Ventricle | 
              | Fovea Centralis | 
              | Foveavirus use Flexiviridae | 
              | Foville Syndrome use Brain Stem Infarctions | 
              | Fowl Adenovirus 1 use Fowl adenovirus A | 
              | Fowl adenovirus A | 
              | Fowl Diphtheria use Fowlpox | 
              | Fowl Paralysis use Marek Disease | 
              | Fowl Paralysis Virus use Herpesvirus 2, Gallid | 
              | Fowl Plague use Influenza in Birds | 
              | Fowl Plague Virus use Influenza A virus | 
              | Fowlpox | 
              | Fowlpox virus | 
              | Fowls, Domestic use Poultry | 
              | Fox-Fordyce Disease | 
              | Foxes | 
              | Foxglove use Digitalis | 
              | Foxglove, Chinese use Rehmannia | 
              | FPLV use Feline panleukopenia virus | 
              | Fpp Scale use Fujita-Pearson Scale | 
              | fps Proto-Oncogene Protein use Proto-Oncogene Proteins c-fes | 
              | Fractals | 
              | Fractional Flow Reserve, Myocardial | 
              | Fractional Precipitation | 
              | Fractionated Drugs | 
              | Fractionation of Drugs use Fractionated Drugs | 
              | Fractionation, Chemical use Chemical Fractionation | 
              | Fractionation, Field Flow | 
              | Fracture Fixation | 
              | Fracture Fixation, Internal | 
              | Fracture Fixation, Intramedullary | 
              | Fracture Healing | 
              | Fracture Zone | 
              | Fractures, Blow-Out use Orbital Fractures | 
              | Fractures, Bone | 
              | Fractures, Cartilage | 
              | Fractures, Closed | 
              | Fractures, Comminuted | 
              | Fractures, Compound use Fractures, Open | 
              | Fractures, Compression | 
              | Fractures, Fatigue use Fractures, Stress | 
              | Fractures, Malunited | 
              | Fractures, March use Fractures, Stress | 
              | Fractures, Occult use Fractures, Closed | 
              | Fractures, Open | 
              | Fractures, Pathological use Fractures, Spontaneous | 
              | Fractures, Spontaneous | 
              | Fractures, Stress | 
              | Fractures, Ununited | 
              | Fragaria | 
              | Fragaria vesca | 
              | Fragile Sites, Chromosome use Chromosome Fragile Sites | 
              | Fragile X Mental Retardation Protein | 
              | Fragile X Syndrome | 
              | Fragilitas Ossium use Osteogenesis Imperfecta | 
              | Fragrant Sumach use Rhus aromatica | 
              | Frail Elderly | 
              | Frail Older Adults use Frail Elderly | 
              | Frambesia use Yaws | 
              | Framboesinum | 
              | Frameshift Mutation | 
              | Frameshift Suppressor Genes use Genes, Suppressor | 
              | Frameshifting, Ribosomal | 
              | Frameshifting, Translational use Frameshifting, Ribosomal | 
              | Framycetin | 
              | France | 
              | Franciscaea uniflora | 
              | Franciscana use Dolphins | 
              | Francisella | 
              | Francisella tularensis | 
              | Francisella tularensis Infection use Tularemia | 
              | Francisellaceae use Francisella | 
              | Francium | 
              | Frangula | 
              | Frangula Emodin use Emodin | 
              | Frankia | 
              | Frankincense | 
              | Franklin Disease use Heavy Chain Disease | 
              | Franzensbad Aqua | 
              | Franzensbad Springs use Franzensbad Aqua | 
              | Fraser Syndrome | 
              | Fraser's Dolphin use Dolphins | 
              | Frasier Syndrome | 
              | Fraud | 
              | Fraud, Health Care use Fraud | 
              | Fraud, Scientific use Scientific Misconduct | 
              | Fraudulent Data use Scientific Misconduct | 
              | FRAXA Syndrome use Fragile X Syndrome | 
              | FRAXE Syndrome use Fragile X Syndrome | 
              | Fraxinella use Dictamnus albus | 
              | Fraxinus | 
              | Fraxinus americana | 
              | Frech-Water Sponge use Badiaga | 
              | Freckle, Melanotic use Hutchinson's Melanotic Freckle | 
              | Freckles use Melanosis | 
              | Free Association | 
              | Free Available Chlorine | 
              | Free Distribution of Drugs use National Drug Policy | 
              | Free Fatty Acids use Fatty Acids, Nonesterified | 
              | Free Flaps use Free Tissue Flaps | 
              | Free Radical Scavengers | 
              | Free Radicals | 
              | Free Silica | 
              | Free Tissue Flaps | 
              | Freedom | 
              | Freedom of Information Act Requests use Access to Information | 
              | Freemartinism | 
              | Freeze Drying | 
              | Freeze Etching | 
              | Freeze Fracturing | 
              | Freeze Substitution | 
              | Freezing | 
              | Freezing Reaction, Cataleptic | 
              | French Guiana | 
              | French Lilac use Galega officinalis | 
              | French Polinesia use Polynesia | 
              | French Revolution | 
              | French Somaliland use Djibouti | 
              | French-Speaking Africa use Africa, Northern | 
              | Frenum, Labial use Labial Frenum | 
              | Frenum, Lingual use Lingual Frenum | 
              | Freons use Chlorofluorocarbons | 
              | Fresh Frozen Plasma use Plasma | 
              | Fresh Plant Extracts | 
              | Fresh Water | 
              | Fresh-Water Crab use Astacus fluviatilis | 
              | Freshets use Floods | 
              | Freshwater Biology | 
              | Freudian Theory | 
              | Freund's Adjuvant | 
              | Frey Syndrome use Sweating, Gustatory | 
              | Friction | 
              | Friedreich Ataxia | 
              | Friedreich Disease use Friedreich Ataxia | 
              | Friend murine leukemia virus | 
              | Friend spleen focus-forming virus use Spleen Focus-Forming Viruses | 
              | Friend Virus use Friend murine leukemia virus | 
              | Friends | 
              | Friendship use Friends | 
              | Frigidity use Sexual Dysfunctions, Psychological | 
              | Fringe Benefits use Salaries and Fringe Benefits | 
              | Fringe-tree use Chionanthus virginica | 
              | Fritillaria | 
              | Fritillary use Fritillaria | 
              | Frizzled Receptors | 
              | Froehlich's Syndrome use Hypothalamic Diseases | 
              | Frog Venoms use Amphibian Venoms | 
              | Frog Viruses use Ranavirus | 
              | Frog, Common European use Rana temporaria | 
              | Frog, Green use Rana clamitans | 
              | Frog, Leopard use Rana pipiens | 
              | Frogs and Toads use Anura | 
              | Frogs, True use Ranidae | 
              | Frommel's Disease use Chiari-Frommel Syndrome | 
              | Frons use Forehead | 
              | Front | 
              | Frontal Bone | 
              | Frontal Encephalocele use Encephalocele | 
              | Frontal Epilepsy, Benign, Childhood use Epilepsy, Frontal Lobe | 
              | Frontal Lobe | 
              | Frontal Lobe Epilepsy use Epilepsy, Frontal Lobe | 
              | Frontal Region Trauma use Craniocerebral Trauma | 
              | Frontal Sinus | 
              | Frontal Sinusitis | 
              | Frontier Water | 
              | Frontotemporal Dementia | 
              | Frontotemporal Lobar Degeneration | 
              | Frost | 
              | Frostbite | 
              | Frozen Foods | 
              | Frozen Sections | 
              | Frozen Semen use Semen Preservation | 
              | Frozen Shoulder use Bursitis | 
              | Fructans | 
              | Fructokinases | 
              | Fructosamine | 
              | Fructose | 
              | Fructose Intolerance | 
              | Fructose Metabolism, Inborn Errors | 
              | Fructose-1,6-Bisphosphatase use Fructose-Bisphosphatase | 
              | Fructose-1,6-Bisphosphatase Deficiency use Fructose-1,6-Diphosphatase Deficiency | 
              | Fructose-1,6-Diphosphatase use Fructose-Bisphosphatase | 
              | Fructose-1,6-Diphosphatase Deficiency | 
              | Fructose-2,6-bisphosphatase use Phosphofructokinase-2 | 
              | Fructose-Biphosphatase Deficiency use Fructose-1,6-Diphosphatase Deficiency | 
              | Fructose-Bisphosphatase | 
              | Fructose-Bisphosphate Aldolase | 
              | Fructosediphosphatase use Fructose-Bisphosphatase | 
              | Fructosediphosphate Aldolase use Fructose-Bisphosphate Aldolase | 
              | Fructosediphosphates | 
              | Fructosephosphates | 
              | Fructuronate Reductase | 
              | Fructus Hippophae use Hippophae | 
              | Fruit | 
              | Fruit Beverage use Juices | 
              | Fruit Beverages use Juices | 
              | Fruit Fly, Caribbean use Tephritidae | 
              | Fruit Fly, Drosophila use Drosophila | 
              | Fruit Fly, Mediterranean use Ceratitis capitata | 
              | Fruit Fly, Mexican use Tephritidae | 
              | Fruit Fly, Queensland use Tephritidae | 
              | Fruit Jam | 
              | Fruit Juice use Juices | 
              | Fruit Juices use Juices | 
              | Fruit, Citrus use Citrus | 
              | Fruit, Miracle use Synsepalum | 
              | Fruiting Bodies, Fungal | 
              | Fruits in Syrup | 
              | Frullania | 
              | Frusemide use Furosemide | 
              | Frustration | 
              | FSH (Follicle Stimulating Hormone) use Follicle Stimulating Hormone | 
              | FSH Receptors use Receptors, FSH | 
              | FSH, alpha Subunit use Glycoprotein Hormones, alpha Subunit | 
              | FSH, beta Subunit use Follicle Stimulating Hormone, beta Subunit | 
              | FSH-Releasing Hormone use Gonadotropin-Releasing Hormone | 
              | FTA-ABS Test use Fluorescent Treponemal Antibody-Absorption Test | 
              | FTIR use Spectroscopy, Fourier Transform Infrared | 
              | FTLV use Immunodeficiency Virus, Feline | 
              | Fuchs' Endothelial Dystrophy | 
              | Fuchsins use Rosaniline Dyes | 
              | Fuchsinum | 
              | Fucose | 
              | Fucosidase use alpha-L-Fucosidase | 
              | Fucosidase Deficiency Disease use Fucosidosis | 
              | Fucosidosis | 
              | Fucosyl Galactose Acetylgalactosaminyltransferase use Fucosyl Galactose alpha-N-Acetylgalactosaminyltransferase | 
              | Fucosyl Galactose alpha-N-Acetylgalactosaminyltransferase | 
              | Fucosyltransferases | 
              | Fucsinum use Fuchsinum | 
              | Fucus | 
              | Fucus helminthochorton use Helminthochortos | 
              | Fucus vesiculosus | 
              | FUdR use Floxuridine | 
              | Fuel Oils | 
              | Fuel Services use Filling Station | 
              | Fuel Stations use Filling Station | 
              | Fuels | 
              | Fugu Toxin use Tetrodotoxin | 
              | Fugue use Dissociative Disorders | 
              | Fujinami sarcoma virus use Avian Sarcoma Viruses | 
              | Fujita-Pearson Scale | 
              | Fukuhara Disease use MERRF Syndrome | 
              | Fukushima Nuclear Accident | 
              | Fukuyama Congenital Muscular Dystrophy use Walker-Warburg Syndrome | 
              | Fukuyama Type Congenital Muscular Dystrophy use Walker-Warburg Syndrome | 
              | Fulgoroidea use Hemiptera | 
              | Fuligo Ligni | 
              | Full-Text Databases | 
              | Full-Text documents | 
              | Fullerenes | 
              | Fulminant Meningococcal Sepsis with Adrenal Apoplexy use Waterhouse-Friderichsen Syndrome | 
              | Fulminating Hepatic Failure use Liver Failure, Acute | 
              | Fumarase use Fumarate Hydratase | 
              | Fumarate Hydratase | 
              | Fumarates | 
              | Fumaria | 
              | Fumariaceae | 
              | Fumaric Acid use Fumaricum Acidum | 
              | Fumaric Acid Esters use Fumarates | 
              | Fumaric Aminase use Aspartate Ammonia-Lyase | 
              | Fumaricum Acidum | 
              | Fumarylacetoacetase Deficiency Disease use Tyrosinemias | 
              | Fumewort use Corydalis | 
              | Fumigation | 
              | Fumonisins | 
              | Functional Cerebral Localization use Brain Mapping | 
              | Functional Claim | 
              | Functional Food | 
              | Functional Laterality | 
              | Functional Neuroimaging | 
              | Functional Properties Claim use Functional Claim | 
              | Functional Residual Capacity | 
              | Functionally-Impaired Elderly use Frail Elderly | 
              | Functioning Authorization | 
              | Functioning Authorization Certificate | 
              | Functioning License | 
              | Fund Raising | 
              | Fundamental Particles use Elementary Particles | 
              | Fundibacter use Alcanivoraceae | 
              | Funding, Capital use Capital Financing | 
              | Fundoplication | 
              | Fundulidae | 
              | Fundulus use Fundulidae | 
              | Fundulus heteroclitus use Fundulidae | 
              | Fundus Fluorescence Photography use Fluorescein Angiography | 
              | Fundus Oculi | 
              | Funduscopes use Ophthalmoscopes | 
              | Funeral Rites | 
              | Funeral Sermons | 
              | Fungal Antibodies use Antibodies, Fungal | 
              | Fungal Antigens use Antigens, Fungal | 
              | Fungal Capsules | 
              | Fungal Count use Colony Count, Microbial | 
              | Fungal DNA use DNA, Fungal | 
              | Fungal Gene Expression Regulation use Gene Expression Regulation, Fungal | 
              | Fungal Gene Products use Fungal Proteins | 
              | Fungal Gene Proteins use Fungal Proteins | 
              | Fungal Genes use Genes, Fungal | 
              | Fungal Genome use Genome, Fungal | 
              | Fungal Infections, Central Nervous System use Central Nervous System Fungal Infections | 
              | Fungal Lung Diseases use Lung Diseases, Fungal | 
              | Fungal Meningitis use Meningitis, Fungal | 
              | Fungal Peptides use Fungal Proteins | 
              | Fungal Polysaccharides | 
              | Fungal Proteins | 
              | Fungal RNA use RNA, Fungal | 
              | Fungal Spores use Spores, Fungal | 
              | Fungal Structures | 
              | Fungal Toxins use Mycotoxins | 
              | Fungal Typing Techniques use Mycological Typing Techniques | 
              | Fungal Vaccines | 
              | Fungemia | 
              | Fungi | 
              | Fungi imperfecti use Mitosporic Fungi | 
              | Fungi, Filamentous use Fungi | 
              | Fungi, Mitosporic use Mitosporic Fungi | 
              | Fungi, Unclassified | 
              | Fungicides, Industrial | 
              | Fungicides, Therapeutic use Antifungal Agents | 
              | Fungus Diseases use Mycoses | 
              | Fungus Poisoning use Mycotoxicosis | 
              | Funisitis use Chorioamnionitis | 
              | Funnel Chest | 
              | Fur Seals | 
              | Fura-2 | 
              | Furagin | 
              | Furaldehyde | 
              | Furanocoumarins use Furocoumarins | 
              | Furanone, tetrahydro-2- use 4-Butyrolactone | 
              | Furans | 
              | Furazolidone | 
              | Furazosin use Prazosin | 
              | Furcation Defects | 
              | Furfural use Furaldehyde | 
              | Furin | 
              | Furnaces | 
              | Furniture use Interior Design and Furnishings | 
              | Furocoumarins | 
              | Furosemide | 
              | Furrow Keratitis use Keratitis, Dendritic | 
              | Fursemide use Furosemide | 
              | Fursultiamin | 
              | Furunculosis | 
              | Furylfuramide | 
              | FUS RNA-Binding Protein use RNA-Binding Protein FUS | 
              | fusA Gene Product use Peptide Elongation Factor G | 
              | fusA Protein use Peptide Elongation Factor G | 
              | Fusaric Acid | 
              | Fusariosis | 
              | Fusaritoxin use T-2 Toxin | 
              | Fusarium | 
              | Fused Teeth | 
              | Fuselloviridae | 
              | Fusellovirus use Fuselloviridae | 
              | Fushi Tarazu Transcription Factors | 
              | Fusidic Acid | 
              | Fusin use Receptors, CXCR4 | 
              | Fusion Inhibitors, HIV use HIV Fusion Inhibitors | 
              | Fusion Proteins, bcr-abl | 
              | Fusion Proteins, gag-fos-fox use Oncogene Proteins v-fos | 
              | Fusion Proteins, gag-jun use Oncogene Protein p65(gag-jun) | 
              | Fusion Proteins, gag-mos use Oncogene Proteins v-mos | 
              | Fusion Proteins, gag-onc | 
              | Fusion Proteins, gag-pol | 
              | Fusion Proteins, Recombinant use Recombinant Fusion Proteins | 
              | Fusion Proteins, tpr-met use Oncogene Protein tpr-met | 
              | Fusion Proteins, Viral use Viral Fusion Proteins | 
              | Fusion Regulatory Protein-1 use Antigens, CD98 | 
              | Fusobacteria | 
              | Fusobacteriaceae Infections | 
              | Fusobacterium | 
              | Fusobacterium Infections | 
              | Fusobacterium necrophorum | 
              | Fusobacterium nucleatum | 
              | Futile Cycling use Substrate Cycling | 
              | Futile Treatment use Medical Futility | 
              | Futurology use Forecasting | 
              | Fuzzy Logic | 
              | fyn Proto-Oncogene Proteins use Proto-Oncogene Proteins c-fyn |