| MD | Doctor of Medicine [Lat. Medicinae Doctor]; magnesium deficiency; main duct; maintenance dose; major... |
|---|---|
| MDRD | Modification of Diet in Renal Disease [study] |
| MFD | mandibulofacial dysostosis; midforceps delivery; milk-free diet; minimum fatal dose; multiple fracti... |
| NPD | narcissistic personality disorder; natriuretic plasma dialysate; negative pressure device; Niemann-P... |
| NS | natural science; Neosporin; nephrosclerosis; nephrotic syndrome; nervous system; neurological surger... |