| MCI | mean cardiac index; methicillin; mucociliary insufficiency; muscle contraction interference |
|---|---|
| NIL | noise interference level |
| PSIL | preferred frequency speech interference level |
| RFI | radiofrequency interference; recurrence-free interval; renal failure index |
| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |