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[会议论文] 作者:Zhuang Lingling,Li Xing,XU Hui,Chen Juanjuan,Huang Dongguo,Yang Hua, 来源:2014中国妇产科学术会议 年份:2004
[会议论文] 作者:Zhuang Lingling,Li Xing,XU Hui,Chen Juanjuan,Huang Dongguo,Yang Hua, 来源:2014中国妇产科学术会议 年份:2014
Background Conservative "hands on" birth manual perineal protection (MPP) is one of the most common OB procedures-60% of births in 1979, 24.5% in 2004 in American and that was 90% in China at the same...
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