| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
|---|---|
| RSJ | Rectosigmoid junction |
| LES | Lower Esophageal Sphincter; 하부 식도 괄약근 |
| LESP | Lower Esophageal Sphincter Prssure |
| UES | Upper Esophageal Sphincter; 상부 식도 괄약근 |