| AMSU | ambulatory minor surgery unit |
|---|---|
| MAS | magic angle spinning; Manifest Anxiety Scale; maximum average score; McCune-Albright syndrome; mecon... |
| MDM | medical decision making; mid-diastolic murmur; minor determinant mix [penicillin] |
| MGL | minor glomerular lesion |
| MIHA | minor histocompatibility antigen |