| PEM | pediatric emergency medicine; peritoneal exudate macrophage; polymorphic epithelial mucin; prescript... |
|---|---|
| POM | pain on motion; prescription only medicine |
| PS | pacemaker syndrome; paired stimulation; paradoxical sleep; paraspinal; parasympathetic; Parkinson sy... |
| Ps | prescription; Pseudomonas; psoriasis |