| PBFe | protein-bound iron |
|---|---|
| PID | pain intensity difference [score]; pelvic inflammatory disease; photoionization detector; picture im... |
| PIDT | plasma iron disappearance time |
| PIT | pacing-induced tachycardia; patella inhibition test; picture identification test; pitocin; pitressin... |
| PITR | plasma iron turnover rate |