| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
|---|---|
| HEIR | health effects of ionizing radiation; high-energy ionizing radiation |
| RO | radiation oncology; radiation output; ratio of; relative odds; renal osteodystrophy; reverse osmosis... |
| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
| PMI | 1) Point of Maximal Impulse(= Intensity) 2) Proportional Mortality Index;... |