| MR | Maddox rods; magnetic resistance; magnetic resonance; mandibular reflex; mannose-resistant; may repe... |
|---|---|
| MTR | magnetization transfer ratio; Meinicke turbidity reaction; 5-methylthioribose; methyltetrahydrofolat... |
| m/z | mass-to-charge ratio |
| NAA/Cr | N-acetyl aspartate/creatine [ratio] |
| N:C | nuclear-cytoplasmic ratio |