| MAT | manual arts therapist; master of arts in technology; mean absorption time; medical assistance team (... |
|---|---|
| MER | mean ejection rate; medical emergency room; methanol extraction residue; murmur/energy ratio |
| NAEMSP | National Association of Emergency Medical Services Physicians |
| NAEMT | National Association of Emergency Medical Technicians |
| NAFEC | National Association of Freestanding Emergency Centers |