| NI | neuraminidase inhibition; neurological improvement; neutralization index; no information; noise inde... |
|---|---|
| NLT | normal lymphocyte transfer; not less than; nucleus lateralis tuberis |
| NMC | National Medical Care; Naval Medical Center; neuromuscular control; nonmotor condition; nucleus reti... |
| NPH | neutral protamine Hagedorn (insulin) [not used anymore]; normal pressure hydrocephalus; nucleus pulp... |
| NPO | nothing by mouth [Lat. nulla per os]; nucleus preopticus |