中国计划生育学杂志
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初产妇无痛分娩中舒芬太尼结合罗哌卡因行腰-硬联合阻滞应用效果#br#
河南省郑州市第七人民医院(450000)
Application effect of sufentanil combined with ropivacaine used in the combined spinal-epidural block for painless labor of primiparas
Zhengzhou Seventh People's Hospital, Zhengzhou, Henan Province, 450000