作者单位:
Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, NY 10032
[1]
Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California
[2]
Department of Preventive Medicine, University of Southern California, Los Angeles, CA 90033, United
[3]
发布时间
2013-11-20