| POP | diphosphate group; pain on palpation; paroxypropione; persistent occipitoposterior [fetal position];... |
|---|---|
| PSF | peak scatter factor; peptide supply factor; point spread function; pseudosarcomatous fasciitis |
| PSP | pancreatic spasmolytic peptide; paralytic shellfish poisoning; parathyroid secretory protein; period... |
| PTHRP, PTHrP | parathyroid-hormone-related peptide; parathyroid-hormone-related protein |
| rANP | rat atrial natriuretic peptide |