| AFRI | acute febrile respiratory illness |
|---|---|
| BFC | benign febrile convulsion |
| FA | false aneurysm; Families Anonymous; Fanconi anemia; far advanced; fatty acid; febrile antigen; femor... |
| FC | fasciculus cuneatus; fast component [of a neuron]; febrile convulsions; feline conjunctivitis; ferri... |
| FND | febrile neutrophilic dermatosis; frontonasal dysplasia |