| FEL | familial erythrophagocytic lymphohistiocytosis |
|---|---|
| FEO | familial expansile osteolysis |
| FEV | familial exudative vitreoretinopathy; forced expiratory volume |
| FEVR | familial exudative vitreoretinopathy |
| FH | facial hemihyperplasia; familial hypercholesterolemia; family history; fasting hyperbilirubinemia; f... |