| FDH | familial dysalbuminemic hyperthyroxinemia; focal dermal hypoplasia; formaldehyde dehydrogenase |
|---|---|
| FEL | familial erythrophagocytic lymphohistiocytosis |
| FEO | familial expansile osteolysis |
| FEV | familial exudative vitreoretinopathy; forced expiratory volume |
| FEVR | familial exudative vitreoretinopathy |