| LMCAD | left main coronary artery disease |
|---|---|
| LMS | lateral medullary syndrome; left main stem [coronary artery]; leiomyosarcoma; Licentiate in Medicine... |
| MAIN | medication-induced, autoimmune, infectious, and neoplastic [diseases associated with antiphospholipi... |
| MAR | main admissions room; marasmus; marrow; maximal aggregation ratio; medication administration record;... |
| MCx | main circumflex [artery] |