| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
|---|---|
| BLB | Baker-Lima-Baker [mask]; Bessey-Lowry-Brock [method or unit]; black light bulb; Boothby-Lovelace-Bul... |
| syr | syrup [Lat. syrupus]; syringe |
| DRE | digital rectal examination |
| DRS | descending rectal septum; diagnostic review station; Division of Research Services [NIH]; drowsiness... |