| RIG | rabies immune globulin; rat insuloma gene |
|---|---|
| RIN | radioisotope nephrography; rat insulinoma |
| ROH | rat ovarian hyperemia [test] |
| RSC | rat spleen cell; rested state contraction; reversible sickle-cell; right subclavian |
| RSS | rat stomach strip; rectosigmoidoscopy; Russell-Silver syndrome |