| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
|---|---|
| ROI | reactive oxygen intermediate; region of interest; right occipitolateral [fetal position] |
| CoA | Coarctation of Aorta - Complications 1. Severe Hypertensi... |
| HARH | High Altitude Retinal Hemorrhage |
| ICH | Intra-Cerebral Hemorrhage |