| MA | malignant arrhythmia; management and administration; mandelic acid; masseter; Master of Arts; matern... |
|---|---|
| MIA | Medical Library Association; missing in action |
| MoA | mechanism of action |
| MSA | major serologic antigen; male-specific antigen; mannitol salt agar; Medical Services Administration;... |
| NAHSA | National Association for Hearing and Speech Action |