| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
|---|---|
| TAC | tachykinin; terminal antrum contraction; tetracaine, adrenalin, and cocaine; time-activity curve; to... |
| DRE | digital rectal examination |
| DRS | descending rectal septum; diagnostic review station; Division of Research Services [NIH]; drowsiness... |
| P&R | pelvic and rectal [examination]; pulse and respiration |