| LR | labeled release; laboratory references; laboratory report; labor room; lactated Ringer [solution]; l... |
|---|---|
| MR | Maddox rods; magnetic resistance; magnetic resonance; mandibular reflex; mannose-resistant; may repe... |
| MRIF | melanocyte[-stimulating hormone] release-inhibiting factor |
| MRIH | melanocyte[-stimulating hormone] release-inhibiting hormone |
| MRR | marrow release rate; maximum relation rate |