| L/R | left-to-right [ratio] |
|---|---|
| L&R | left and right |
| LRQ | lower right quadrant |
| MDA | malondialdehyde; manual dilation of anus; methylene dianiline; 3,4-methylenedioxyamphetamine; minima... |
| MDP | manic-depressive psychosis; maximum diastolic potential; maximum digital pulse; methylene diphosphat... |