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£Û1£Ý Yousef AA,Amr YM.The effect of adding magnesium sulphate to epidural bupivacaine and fentanyl in elective caesarean section using combined spinalepidural anaesthesia£ºa prospective double blind randomised study.Int J Obstet Anesth,2010,19(4)£º401-404.

£Û2£Ý Davies SJ,Paech MJ,Welch H,et al.Maternal experience during epidural or combined spinal-epidural anesthesia for cesarean section£ºa prospective,randomized trial.Anesth Analg,1997,85(3)£º607-613.

£Û3£Ý Choi DH,Kim JA,Chung IS,et al.Comparison of combined spinal epidural anesthesia and epidural anesthesia for cesarean section.Acta Anaesthesiol Scand,2000,44(2)£º214-219. £Û4£Ý ÕÅÒ°.¸´ºÏÑüÂéӲĤÍâÂé×í.¹úÍâҽѧ£ºÂé×íѧÓ븴Ëշֲᣬ1996,17(4)£º210-212.