143,755
Participants
Start Date
January 31, 2014
Primary Completion Date
December 31, 2016
Study Completion Date
December 31, 2016
Capital Institute of Pediatrics, Beijing
Children's Hospital of Chongqing Medical University, Chongqing
The Third Affiliated Hosptial,Sun Yat-Sen University, Guangzhou
Harbin Medical University, Harbin
Central South University, Changsha
Chengdu Women's and Children's Central Hospital, Chengdu
Sichuan University, Chengdu
The 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou
National Health and Family Planning Commission, P.R.China
OTHER_GOV
Fudan University
OTHER