| LN2 | liquid nitrogen |
|---|---|
| MBL | Marine Biological Laboratory; menstrual blood loss; minimum bactericidal level |
| MDNB | mean daily nitrogen balance; metadinitrobenzene |
| NCD | National Commission on Diabetes; National Council on Drugs; neurocirculatory dystonia; nitrogen clea... |
| NIBSC | National Institute for Biological Standards and Control |