| GTR | galvanic tetanus ratio; granulocyte turnover rate |
|---|---|
| IIT | ineffective iron turnover |
| MIT | Massachusetts Institute of Technology; male impotence test; marrow iron turnover; melodic intonation... |
| PIT | pacing-induced tachycardia; patella inhibition test; picture identification test; pitocin; pitressin... |
| PITR | plasma iron turnover rate |