| ROSS | review of subjective symptoms |
|---|---|
| RRC | residency review committee; risk reduction component; routine respiratory care; Royal Red Cross; rur... |
| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
| SRG | specialty review group |
| SURS | solitary ulcer of rectum syndrome; surveillance and utilization review |