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FAS (fetal alcohol syndrome)
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FTT (failure to thrive, failure to gain weight)
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Fallot's syndrome (tetrology of Fallot, ToF)
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face swelling (facial swelling, swelling in the face)
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facial nerve palsy (Bell palsy, facial nerve weakness)
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facial nerve weakness (Bell palsy, facial nerve palsy)
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facial swelling (face swelling, swelling in the face)
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factitious disorder (Munchausen syndrome, Munchausen syndrome by proxy, MSP)
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factor IX deficiency (hemophilia B, Christmas disease)
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failure to gain weight (failure to thrive, FTT)
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failure to thrive (FTT, failure to gain weight)
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fainting (passing out, syncope, syncopal episode)
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fallen arches (flat feet, pes planus, pes planovalgus, excessive pronation, talipes calcaneal valgus)
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fallen bladder (cystocele, dropped bladder)
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false labor (prelabor, Braxton Hicks contractions, prodromal labor, latent phase)
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familial combined hyperlipidemia (type IIb hyperlipoproteinemia)
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familial hypercholesterolemia (type IIa hyperlipoproteinemia)
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familial hypertriglyceridemia (type IV hyperlipoproteinemia)
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familial periodic paralysis (type IV hyperlipoproteinemia)
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farsightedness (hyperopia, hypermetropia)
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fast heartbeat (rapid heartbeat, tachycardia)
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febrile seizures (convulsions with fever)
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fecal impaction (convulsions with fever)
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female infertility (infertility in women)
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fetal alcohol syndrome (FAS)
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fever blister (herpes simplex infections, cold sore)
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fibrocystic breast disease (fibrocystic changes in the breast)
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fibrocystic changes in the breast (fibrocystic breast disease)
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fibromyalgia (fibrositis)
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fibromyoma (uterine fibroids, leiomyoma, myoma)
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fibrositis (fibromyalgia)
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fifth disease (erythema infectiosum)
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first aid for loss of consciousness (unconsciousness, first aid)
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first aid for shock (unconsciousness, first aid)
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first-degree heart block (heart block, atrioventricular block, AV block, bundle branch block, complete heart block, second-degree heart block, third-degree heart block, cardiac conduction defect, infranodal block, intraatrial block, intraventricular block, sinoatrial block)
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fish scale disease (ichthyosis)
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flat feet (pes planus, fallen arches, pes planovalgus, excessive pronation, talipes calcaneal valgus)
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flavivirus (West Nile virus, West Nile encephalitis, West Nile meningitis)
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flu (influenza)
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fluid in the lung (pulmonary edema, lung edema)
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food allergy (food hypersensitivity)
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food hypersensitivity (food allergy)
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food poisoning (food allergy)
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foot arch pain (arch pain, plantar fasciitis)
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foot care for people with diabetes (diabetic foot care)
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foreign body in the nose (diabetic foot care)
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frozen shoulder (adhesive capsulitis)
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fungal nail infection (onychomycosis, mycotic nails)
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furuncle (skin abscess, abscess, carbuncle, boil)
