自由体位联合硬膜外复合脉冲式镇痛泵对初产妇镇痛及分娩影响

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梁舒李瑛夏玲珍

Effects of free position combined with epidural pulse analgesia pump on analgesia and delivery of primiparas

LIANG Shu, LI Ying, XIA Lingzhen

中国计划生育学杂志 . 2020, (6): 881 -884 .