1Abboud TK, Moore M, Zhu J, et al. Epidural butorphanol or morphine for the relief of post-cesarean section pain: ventilatory responses to carbon dioxide [J]. Anesth Analg, 1987, 66:887-893.
1Stamer UM,Maier C,Grond S. Tramadol in the management of post-operative pain:a double-blind,placebo-and active drugcontrolled study[J].European Journal of Anaesthesiology,1997,(06):646-654.
2Desjardins PJ,Norris LH,Cooper SA. Analgesic efficacy of intranasal butorphanol (Stadol NS) in the treatment of pain after dental impaction surgery[J].Journal of Oral and Maxillofacial Surgery,2000,(z2):19-26.doi:10.1053/joms.2000.17884.
3Vogelsang J,Hayes SR. _Butorphanol tartrate (stadol):a review[J].Journal of Post Anesthesia Nursing,1991,(02):129-135.