| RSB | reticulocyte standard buffer; right sternal border |
|---|---|
| RSD | reflex sympathetic dystrophy; relative standard deviation |
| RSMR | relative standard mortality rate |
| Rst | in paper or thin layer chromatography, the distance that a spot of a substance has moved, relative t... |
| SA | salicylic acid; saline [solution]; salt added; sarcoidosis; sarcoma; scalenus anticus; secondary ame... |