| IPPR | integrated pancreatic polypeptide response; intermittent positive-pressure respiration |
|---|---|
| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
| PNPR | positive-negative pressure respiration |
| P&R | pelvic and rectal [examination]; pulse and respiration |
| RC | an electronic circuit containing a resistor and capacitor in series; radiocarpal; reaction center; r... |