| MRT | magnetic resonance tomography; maximum relaxation time; median range score; median reaction time; me... |
|---|---|
| NAIR | nonadrenergic inhibitory response |
| NARL | no adverse response level |
| NCR | National Research Council; neutrophil chemotactic response; no carbon required; nuclear/cytoplasmic ... |
| NMR | neonatal mortality rate; nictitating membrane response; nuclear magnetic resonance |