1Walker E A, Picker M J, Granger A, et al. Effects of opioids in morphine- treated pigeons trained to discriminate among morphine, the low - efficacy agonist nalbuphine, and saline [J]. J Pharmaeol Exp Ther, 2004, 310(1): 150.
2Fujii Y. Prevention of nausea and vomiting during termination of pregnancy[J]. Int J Gynaecol Obstet, 2010, 111(1) : 3.
6Dean G, Jacobs A R, Goldstein R C, et al. The ety of deep sedation without intubation for abortion in the outpatient set- ting[J]. J Clin Anesth, 2011, 23(6): 437.
8Schmidt GN,Bischoff P,Stancll T,et al.SNAP index and Bis-pectral index during different states of propofol/remifentanil anaesthesia[J].Anaesthesia,2005,60(3):228-234.
9McColmack J G. Total intravenous anaesthesia in children [ J ]. Curr Anaesth Crit Care,2008,19 (5) :308-314.
10VanNatta M E, Rex D K. Propofol aione titrated to sedation versus propofol in combination with opioids and/or benzodi- azepines and titrated to moderate sedation for edonoscopy[J ]. Am J Gastroenterol, 2006, 101(10) : 2209.
1Fischer C, Blani6 P, Jaouan E, et al. Ropivacaine 0. 1% plus sufen- tanil 0. 5% μg/ml versus patients-controlled epidural analgesia for labor [J]. Anesthesiology, 2000, 92(60): 1588-1593.
2Sun ZT, Yang CY, Cui Z, et al. Effect of intravenous dezocine on fen- tanyl-induced cough during general anesthesia induction: a double- blinded, prospective, randomized, controlled trial [J]. JAnesth,2011, 25 (6): 860-863.
3Barrett AC, Smith ES, Picker MJ. Capsaicin-induced hyperalgesia and mu-opioid-induced antihyperalgesia in male and female Fischer 344 rats[J]. J Pharmacol Exp Ther, 2003, 307(1): 237-245.
4Fischer, BD, Miller, LL. Increased efficacy of mu-opioid agonist-in- duced antinociception by metabotropic glutamate receptor antagonists in C57BL/6 mice: comparison with (-)-6-phosphonomethyl:deca-hy- droisoquinoline-3-carboxylic acid (LY235959)[J]. Psychopharmacol- ogy, 2008, 198(2): 271-278.
5Jozwiak M, Dodd JM. Methods of term labour induction for women with a previous caesarean section [J]. Cochrane Database Syst Rev, 2013, 28(3): 1024-1026.
6Sia AT, Leo S, Ocampo CE. A randomised comparison of vari- able-frequency automated mandatory boluses with a basal infusion for patient-controlled epidural analgesia during labour and delivery [J]. Anaesthesia, 2013, 68(3): 267-275.
7Marr R, Hyams J, Bythell V. Cardiac arrest in an obstetric patient us- ing remifentanil patient-controlled analgesia. Anaesthesia [J]. Anaes- thesia, 2013, 68(3): 283-287.
8Lndraceolo U, Ripanelli A, Di Iorio R, et al. Effect of epidural analge- sia on labor times and mode of delivery: a prospective study [J]. Clin Exp Obstet Gynecol, 2012, 39(3): 310-313.