| RA | radioactive; ragocyte; ragweed antigen; rapidly adapting [receptors]; reactive arthritis; reciprocal... |
|---|---|
| RAT | repeat action tablet; rheumatoid arthritis test |
| SA | salicylic acid; saline [solution]; salt added; sarcoidosis; sarcoma; scalenus anticus; secondary ame... |
| SAE | serious adverse event; short above-elbow [cast]; specific action exercise; subcortical arteriosclero... |
| SDA | right sacroanterior [fetal position] [Lat. sacrodextra anterior]; sialodacryoadenitis; specific dyna... |