作者: David C. Campbell , Rhonda M. Zwack , Lesley-Ann L. Crone , Ray W. Yip
DOI: 10.1097/00000539-200006000-00023
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摘要: Dilute concentrations of bupivacaine combined with fentanyl have recently been used to initiate labor epidural analgesia in an attempt balance adequate and minimal maternal motor blockade. Similar ropivacaine not evaluated. This prospective, randomized, doubl