| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
|---|---|
| NRS | neurobehavioral rating scale; normal rabbit serum; normal reference serum; numerical rating scale |
| NSD | Nairobi sheep disease; neonatal staphylococcal disease; neurosecretory dysfunction; night sleep depr... |
| NT | nasotracheal; neotetrazolium; neurotensin; neurotrophic; neutralization test; nicotine tartrate; non... |
| ACD | 1) Absolute Cardiac Dullness; 절대심둔탁음 2) Anemia of Chronic Disease &nbs... |