TY  - RPRT
TI  - Premedication with butorphanol. A comparison with morphine.
AU  - D A Laffey
AU  - N H Kay
PY  - 1984
DO  - 10.1093/bja/56.4.363
UR  - https://pubmed.ncbi.nlm.nih.gov/6712850/
ID  - 6712850
ER  -