| MN | a blood group in the MNSs blood group system; malignant nephrosclerosis; Master of Nursing; meganewt... |
|---|---|
| NARP | neuropathy-ataxia-retinitis pigmentosa [syndrome] |
| NTE | neuropathy target esterase; neurotoxic esterase; not to exceed |
| OPIDN | organophosphorus-induced delayed neuropathy |
| PION | posterior ischemic optic neuropathy |