| FSI | foam stability index; Food Sanitation Institute; functional status index; function status index |
|---|---|
| FT | Fallot tetralogy; false transmitter; family therapy; fast twitch; fatigue trial; fibrous tissue; fin... |
| funct | function, functional |
| FXN | function |
| IRF | idiopathic retroperitoneal fibrosis; impulse response function; interferon regulatory factor; intern... |