| SF | Sabin-Feldman [test]; safety factor; salt-free; scarlet fever; screen film; seminal fluid; serosal f... |
|---|---|
| TF | free thyroxine; tactile fremitus; tail flick [reflex]; temperature factor; testicular feminization; ... |
| SMAF | smooth muscle activating factor; specific macrophage arming factor |
| ORSA | osteoclast resorption stimulating activity |
| DF | decapacitation factor; decontamination factor; deferoxamine; deficiency factor; defined flora [anima... |