| RAPs | radiologists, anesthesiologists, and pathologists |
|---|---|
| RAR | rapidly adapting receptor; rat insulin receptor; retinoic acid receptor; right arm reclining; right arm recumbent |
| RARA | retinoic acid receptor alpha |
| RARB | retinoic acid receptor beta |
| RARE | rapid acquisition with relaxation enhancement |
| RARG | retinoic acid receptor gamma |
| RARLS | rabbit anti-rat lymphocyte serum |
| RARS | Refractory Anemia with Ringed Sideroblast = AISA |
| RARS | refractory anemia with ring sideroblasts |
| RARTS | rabbit anti-rat thymocyte serum |