分阶段体位管理联合自主屏气用力对初产妇第二产程和分娩结局的影响

Journal of Nursing ›› 2014 ›› Issue (13) : 33-35.

PDF(804 KB)
PDF(804 KB)
Journal of Nursing ›› 2014 ›› Issue (13) : 33-35.

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