| MANOVA | multivariate analysis of variance |
|---|---|
| MAS | magic angle spinning; Manifest Anxiety Scale; maximum average score; McCune-Albright syndrome; mecon... |
| MDA | malondialdehyde; manual dilation of anus; methylene dianiline; 3,4-methylenedioxyamphetamine; minima... |
| MDIA | multidimensional interaction analysis |
| MEDLARS | Medical Literature Analysis and Retrieval System |