| PDA | patent ductus arteriosus; personal digital assistant; posterior descending artery; pulmonary disease... |
|---|---|
| PHC | personal health costs; posthospital care; premolar hypodontia, hyperhidrosis, [premature] canities [... |
| PHD | pathological habit disorder; personal health data; post-heparin plasma diamine oxidase; potentially ... |
| PHF | paired helical filament; personal hygiene facility |
| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |