| MRSI | magnetic resonance spectroscopy imaging |
|---|---|
| NIRS | near-infrared spectroscopy; normal inactivated rabbit serum |
| NIS | nationwide impatient sample; near-infrared intracranial spectroscopy; N-iodosuccinimide; no inflamma... |
| NMRS | nuclear magnetic resonance spectroscopy |
| NOESY | nuclear Overhauser effect spectroscopy |