| PPI | partial permanent impairment; patient package insert; present pain intensity; purified porcine insulin |
|---|---|
| PPi, PPi | inorganic pyrophosphate |
| PPID | peak pain intensity difference [score] |
| PPIE | prolonged postictal encephalopathy |
| PPK | palmoplantar keratosis; prekallikrein |
| PPL | Penicilloyl Poly-Lysine |
| PPL | penicilloyl polylysine; posterior pulmonary leaflet |
| Ppl | intrapleural pressure |
| PPLO | pleuropneumonia-like organism |
| PPM | permanent pacemaker; phosphopentomutase; physician practice management; pigmented pupillary membrane; posterior papillary muscle; pulse position modulated |