| PCMO | Principal Clinical Medical Officer |
|---|---|
| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |
| PMO | postmenopausal osteoporosis; Principal Medical Officer |
| PND | paroxysmal nocturnal dyspnea; partial neck dissection; postnasal drainage; postnasal drip; postnatal... |
| PNO | Principal Nursing Officer |