| MEA | male-enhanced antigen; Medical Exhibition Association; mercaptoethylamine; monoethanolamine; multipl... |
|---|---|
| MGMA | Medical Group Management Association |
| MIA | Medical Library Association; missing in action |
| MLA | left mentoanterior [fetal position] [Lat. mento-laeva anterior]; Medical Library Association; mesiol... |
| MSEA | Medical Society Executives Association |