[1] Fudan Univ, NHC Key Lab Reprod Regulat, Shanghai Inst Biomed & Pharmaceut Technol, Shanghai, Peoples R China
[2] Capital Inst Pediat, Beijing, Peoples R China
[3] Jiangsu Prov Ctr Dis Control & Prevent, Nanjing, Jiangsu, Peoples R China
[4] Beichen Dist Ctr Dis Control & Prevent, Tianjin, Peoples R China
[5] Shenzhen Childrens Hosp, Childrens Healthcare & Mental Hlth Ctr, 7019 Yitian Rd, Shenzhen 518038, Guangdong, Peoples R China
[6] Kangjian Community Hlth Serv Ctr, 88 Jiangan Rd, Shanghai, Peoples R China