| OSF | organ system failure; osteoclast-stimulating factor; outer spiral fiber; overgrowth stimulating fact... |
|---|---|
| PCF | peripheral circulatory failure; pharyngoconjunctival fever; platelet complement fixation; posterior ... |
| POFX | X-linked premature ovarian failure |
| PPCF | peripartum cardiac failure; plasma prothrombin conversion factor |
| PPRF | paramedian pontine reticular formation; postpartum renal failure |