[1] Institute of Reproductive and Child Health, National Health Commission Key Laboratory of Reproductive Health, Peking University Health Science Center
[2] Office for National Maternal and Child Health Statistics of China, School of Public Health, Peking University Health Science Center
[3] Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center
[4] Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Harvard Medical School
[5] Department of Child, Adolescent and Women’s Health, School of Public Health, Peking University Health Science Center
[6] Departments of Pediatrics and Environmental Medicine, NYU School of Medicine
[7] Department of Population Health, NYU School of Medicine
[8] NYU Wagner School of Public Service
[9] Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital
[10] Key Laboratory of Assisted Reproduction, Ministry of Education
[11] Reproductive Health Research Center of Peking University Health Science Center