| NR | Reynold's number |
|---|---|
| NSA | Neurological Society of America; normal serum albumin; no salt added; no significant abnormality; no... |
| NUI | number user identification |
| numc | number concentration |
| NVD | nausea, vomiting, and diarrhea; neck vein distention; neovascularization of the disk; neurovesicle d... |