| NRF | Neurosciences Research Foundation; normal renal function |
|---|---|
| PPRF | paramedian pontine reticular formation; postpartum renal failure |
| PRAS | pre-reduced anaerobically sterilized [medium]; pseudo-renal artery syndrome |
| PRF | partial reinforcement; patient report form; perforin; plasma recognition factor; pontine reticular f... |
| PTRA | percutaneous transluminal renal angioplasty |