| NES | not elsewhere specified |
|---|---|
| NOS | network operating system; nitric oxide synthetase; non-organ-specific; not on staff; not otherwise s... |
| NS | natural science; Neosporin; nephrosclerosis; nephrotic syndrome; nervous system; neurological surger... |
| IHD | Ischemic Heart Disease = Coronary Heart(Artery) Disease = Atheroscler... |
| AHD | acquired hepatocerebral degeneration; acute heart disease; antihyaluronidase; antihypertensive drug;... |