作者单位:
Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Maternal-Fetal Medicine
[1]
Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of
[2]
Department of Obstetrics and Gynecology, Oregon Health and Science University, OR, United States
[3]
Department of Family Health, School of Nursing, University of California, San Francisco, United
[4]
发布时间
2013-11-21