| PpIX | photosensitiser protoporphyrin IX |
|---|---|
| PPJ | Pure pancreatic juice |
| PPK | Palmoplantar keratoderma |
| PPK | Polyphosphate kinase |
| Ppl | Pleural pressure |
| PPL | Propranolol |
| PPL | penicilloyl poly-L-lysine |
| ppm | pars per million |
| ppm | parts/million |
| PPMCs | Physician practice management companies |