| IHRB | Industrial Health Research Board |
|---|---|
| IM | idiopathic myelofibrosis; immunosuppressive method; implementation monitoring; Index Medicus; indome... |
| IMA | Industrial Medical Association; inferior mesenteric artery; Interchurch Medical Assistance; internal... |
| IMS | incurred in military service; Indian Medical Service; industrial methylated spirit; information mana... |
| IND | indomethacin; industrial medicine; investigational new drug |