| P&B | pain & burning; phenobarbital and belladonna |
|---|---|
| PCU | pain control unit; primary care unit; patient care unit; pulmonary care unit |
| PDI | pain disability index; periodontal disease index; plan-do integration; psychomotor development index... |
| PFPS | patellofemoral pain syndrome |
| PID | pain intensity difference [score]; pelvic inflammatory disease; photoionization detector; picture im... |