作者单位：
Department of Obstetrics/Gynecology, Perelman School of Medicine, University of Pennsylvania, 3701
[1]
Center for Research in Reproduction and Women's Health, Perelman School of Medicine, University of
[2]
Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of
[3]
发布时间
2013-11-20
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