| PBZ | personal breathing zone; phenylbutazone; phenoxybenzamine; pyribenzamine |
|---|---|
| PDA | patent ductus arteriosus; personal digital assistant; posterior descending artery; pulmonary disease... |
| PH | parathyroid hormone; partial hepatectomy; partial hysterectomy; passive hemagglutination; past histo... |
| PHD | pathological habit disorder; personal health data; post-heparin plasma diamine oxidase; potentially ... |
| PHF | paired helical filament; personal hygiene facility |