中国计划生育学杂志
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新产程标准下第二产程不同时长对分娩方式及妊娠结局的影响
浙江省温州市中西医结合医院
The influence of different time of the second labor stage in standard of new laber stage on delivery mode and pregnancy outcomes
The Hospital of Traditional Chinese and Western Medicine of Wenzhou City, Zhejiang