| NBF | no breast feeding |
|---|---|
| PF | pair feeding; peak flow; perfusion fluid; pericardial fluid; periosteal fibroblast; peritoneal fluid... |
| SF | Sabin-Feldman [test]; safety factor; salt-free; scarlet fever; screen film; seminal fluid; serosal f... |
| STF | serum thymus factor; slow-twitch fiber; special tube feeding; specialized treatment center; stefin; ... |
| TF | free thyroxine; tactile fremitus; tail flick [reflex]; temperature factor; testicular feminization; ... |