| PFFD | proximal focal femoral deficiency |
|---|---|
| PGV | proximal gastric vagotomy |
| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |
| PIP | paralytic infantile paralysis; peak inflation pressure, peak inspiratory pressure; periodic interim ... |
| PIPJ | proximal interphalangeal joint |