| mA, ma | milliampere; meter-angle |
|---|---|
| MAR | main admissions room; marasmus; marrow; maximal aggregation ratio; medication administration record;... |
| MAS | magic angle spinning; Manifest Anxiety Scale; maximum average score; McCune-Albright syndrome; mecon... |
| PASA | para-aminosalicylic acid; primary acquired sideroblastic anemia; proximal articular set angle |
| RA | radioactive; ragocyte; ragweed antigen; rapidly adapting [receptors]; reactive arthritis; reciprocal... |