| NIRS | near-infrared spectroscopy; normal inactivated rabbit serum |
|---|---|
| NIS | nationwide impatient sample; near-infrared intracranial spectroscopy; N-iodosuccinimide; no inflamma... |
| RAIS | reflection-absorption infrared spectroscopy |
| FIR | far infrared; fold increase in resistance |
| FTIR | Fourier-transformed infrared; functional terminal innervation ratio |