4SARACOG LUA, KEMAL T, SARACOG LU, et al.Com- parative study of fentanyl and morphine in addition to hyperbaric or isobaric bupivacaine in combined spinal anaesthesia for caesarean section[J]. Arch Med Sci,2011,7 (4) : 694-699.
6De Witte J, Deloof T, De veylder J, et al. Tramadol in the treatment of postanesthetic shivering[J].Acta Anaesthesiol Scand,1997,41:506-510.
7Eggers KA, Power I. Tramadol[J].Br J Anaesth,1995,74:247-249.
8Beattie WS, Lindblad T, Buckley DN, et al. Menstruation increases the risk of nausea and vomiting after laparoscopy: a prospective randomized study. Anesthesiology, 1993, 78: 272-276.
9Gratz I, Allen E, Afshar M, et al. The effects of the menstrual cycle on the incidence of emesis and efficacy of ondan setron. Anesth Analg, 1996, 83: 565-569.
10Choi DH, Ko JS, Ahn HJ, et al. A Korean predictive model for postoperative nausea and vomiting. J Korean Med Sei, 2005, 20: 811-875.
