| IM | inner medulla |
|---|---|
| IM | inner membrane |
| IM | intermediate |
| IM | interstitial macrophage |
| IM | intrahepatic metastases |
| IM | intramuscular injection |
| IMA | Internal Mammary Artery |
| IMA | Internal mammary arteries |
| IMA | inferior mesenteric artery |
| IMAC | Immobilised metal ion affinity chromatography |