| RAT | repeat action tablet; rheumatoid arthritis test |
|---|---|
| RhA | rheumatoid arthritis |
| SARA | sexually acquired reactive arthritis; Superfund Amendments and Reauthorization |
| SIA | serum inhibitory activity; stress-induced analgesia; stress-induced anesthesia; subacute infectious ... |
| VAS | vascular; ventriculo-atrial shunt; Verapamil Angioplasty Study; vesicle attachment site; viral arthr... |