| MCAR | mixed cell agglutination reaction |
|---|---|
| MLR | mean length response; middle latency response; mixed lymphocyte reaction |
| MPAS | mild perioxic acid Schiff [reaction] |
| MPR | mannose 6-phosphate receptor; marrow production rate; massive preretinal retraction; maximum pulse r... |
| MRT | magnetic resonance tomography; maximum relaxation time; median range score; median reaction time; me... |