| FAV | facio-auriculovertebral [sequence]; feline ataxia virus; floppy aortic valve; fowl adenovirus |
|---|---|
| FRDA | Friedreich ataxia |
| NAF | nafcillin; National Amputation Foundation; National Ataxia Foundation; net acid flux |
| NARP | neuropathy-ataxia-retinitis pigmentosa [syndrome] |
| OHAHA | ophthalmoplegia-hypotonia-ataxia-hypacusis-athetosis [syndrome] |