| RCS | rabbit aorta-contracting substance; red cell suspension; reticulum cell sarcoma; right coronary sinu... |
|---|---|
| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
| RSA | rabbit serum albumin; regular spiking activity; relative specific activity; relative standard accura... |
| RSV | respiratory syncytial virus; right subclavian vein; Rous sarcoma virus |
| SA | salicylic acid; saline [solution]; salt added; sarcoidosis; sarcoma; scalenus anticus; secondary ame... |