1134-8046 1134-8046 S1134-80462018000400207 10.20986/resed.2018.3619/2017 Venezuela Venezuela Colombia Colombia Colombia 00 08 2018 00 08 2018 25 4 207 213

2013 21 1 1 18-26 2013 13 215 2002 89 3 3 369-72 2012 62 6 6 1-7 2003 10 3 3 135-44 The effect of addition of intrathecal clonidine to hyperbaric bupivacaine on postoperative pain after lower segment caesarean section: A randomized control trial 2013 7 3 3 283-90 Intrathecal morphine 100 and 200 µg for post-cesarean delivery analgesia: a trade-off between analgesic efficacy and side effects 2013 22 1 1 36-41 Comparative study of postoperative analgesia after intrathecal administration of bupivacaine with fentanyl or morphine for elective Caesarean section 2009 41 1 1 28-32 2012 20 92-7