| MBFLB | monaural bifrequency loudness balance |
|---|---|
| MDNB | mean daily nitrogen balance; metadinitrobenzene |
| MES | maintenance electrolyte solution; maximal electroshock; maximal electroshock seizures; myoelectric s... |
| MLB | micro-laryngobronchoscopy; monoaural loudness balance |
| RE | radium emanation; readmission; rectal examination; reference emitter; reflux esophagitis; regional e... |