| PIF | 1) Proliferation Inhibitory Factor 2) Prolactin release Inhibiting Factor |
|---|---|
| PIF | paratoid isoelectric focusing variant protein; peak inspiratory flow; proinsulin-free; prolactin-inhibiting factor; prolactin release-inhibiting factor; proliferation-inhibiting factor; prostatic interstitial fluid |
| PIFG | poor intrauterine fetal growth |
| PIFR | peak inspiratory flow rate |
| PIFT | platelet immunofluorescence test |