| IMS | incurred in military service; Indian Medical Service; industrial methylated spirit; information mana... |
|---|---|
| IRIS | integrated risk information system; interleukin regulation of immune system; International Research ... |
| MCS | malignant carcinoid syndrome; managed care system; massage of the carotid sinus; mesocaval shunt; me... |
| MHS | major histocompatibility system; malignant hyperthermia in swine; malignant hyperthermia syndrome; m... |
| MIMS | medical information management system; medical inventory management system |