12,000
Participants
Start Date
September 30, 2016
Primary Completion Date
November 30, 2016
Study Completion Date
January 31, 2017
Chinese Evidence-based Medicine Centre, West China Hospital, Sichuan University, Chengdu
West China Second University Hospital
OTHER
Sichuan Provincial Hospital for Women and Children
OTHER
Panzhihua Central Hospital
OTHER
Chongqing Medical Center for Women and Children
OTHER
Obstetrics and Gynecology Hospital of Zhejiang University
UNKNOWN
Xiamen Medical Center for Women and Children
UNKNOWN
Wenzhou People's Hospital
OTHER
Suzhou Municipal Hospital
OTHER
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
OTHER
Maternal and Child Health Hospital of Hubei Province
OTHER
The First Affiliated Hospital of Zhengzhou University
OTHER
First Affiliated Hospital of Guangxi Medical University
OTHER
Shanxi Provincial Maternity and Children's Hospital
OTHER
The Second Affiliated Hospital of Shanxi University of Traditional Chinese Medicine
UNKNOWN
Yan'an University Affiliated Hospital
OTHER
Xinjiang Provincial Hospital for Women and Children
UNKNOWN
Shengjing Hospital
OTHER
Dalian Maternity and Child Care Hospital
OTHER
Changchun Obstetrics and Gynecology Hospital
UNKNOWN
The Fourth Affiliated Hospital of Harbin Medical University
OTHER
Beijing Obstetrics and Gynecology Hospital
OTHER
Tianjin Central Hospital of Gynecology Obstetrics
OTHER
The Fourth Hospital of Shijiazhuang
OTHER
Beijing Friendship Hospital
OTHER
West China Hospital
OTHER