| RTRR | return to recovery room |
|---|---|
| RTV | room temperature vulcanization |
| SDR | spontaneously diabetic rat; surgical dressing room |
| SP | sacroposterior; sacrum to pubis; salivary progesterone; schizotypal personality; semi-private [room]... |
| SRO | sex-ratio organism; single room occupancy; smallest region of overlap; Steele-Richardson-Olszewski [... |