[1] Shanghai Jiao Tong Univ, Xinhua Hosp, Sch Med, Dept Pediat, 1665 Kongjiang Rd, Shanghai 200092, Peoples R China
[2] Shanghai Jiao Tong Univ, Xinhua Hosp, Sch Med, Clin Res Unit, Shanghai, Peoples R China
[3] Shanghai Jiao Tong Univ, Xinhua Hosp, Sch Med, Minist Educ,Shanghai Key Lab Childrens Environm H, Shanghai, Peoples R China
[4] Shanghai MedSci Med Inst, Shanghai, Peoples R China
[5] Harvard Univ, Harvard Med Sch, Boston, MA 02115 USA
[6] Beth Israel Deaconess Med Ctr, Dept Obstet & Gynecol, Boston, MA 02215 USA
[7] Jiangxi Prov Childrens Hosp, Dept Pediat, Nanchang, Jiangxi, Peoples R China
[8] Lanzhou Univ, Dept Pediat, Hosp 2, Lanzhou, Gansu, Peoples R China
[9] Zhejiang Univ, Childrens Hosp, Dept Pediat, Hangzhou, Zhejiang, Peoples R China
[10] Zhejiang Univ, Sch Med, Hangzhou, Zhejiang, Peoples R China
[11] Zhejiang Univ, Inst Global Hlth, Hangzhou, Zhejiang, Peoples R China
[12] Sun Yat Sen Univ, Affiliated Hosp 2, Dept Pediat, Guangzhou, Guangdong, Peoples R China
[13] Soochow Univ, Dept Pediat, Affiliated Childrens Hosp, Suzhou, Peoples R China
[14] China Med Univ, Dept Pediat, ShengJing Hosp, Shenyang, Liaoning, Peoples R China
[15] Guizhou Med Univ, Dept Pediat, Affiliated Hosp, Guiyang, Guizhou, Peoples R China
[16] Fudan Univ, Childrens Hosp, Dept Pediat, Shanghai, Peoples R China
[17] Nanjing Med Univ, Dept Pediat, Childrens Hosp, Nanjing, Jiangsu, Peoples R China
[18] Shandong Univ, Qilu Hosp, Dept Pediat, Jinan, Shandong, Peoples R China
[19] Henan Prov Peoples Hosp, Dept Pediat, Zhengzhou, Henan, Peoples R China
[20] Kunming Univ Sci & Technol, Peoples Hosp Yunnan Prov 1, Dept Pediat, Kunming, Yunnan, Peoples R China
[21] Childrens Hosp Chongqing Med Univ, Dept Pediat, Chongqing, Peoples R China
[22] Shanxi Childrens Hosp, Dept Pediat, Taiyuan, Shanxi, Peoples R China
[23] Shanxi Med Univ, Taiyuan, Shanxi, Peoples R China
[24] Tianjin Med Univ, Dept Pediat, Gen Hosp, Tianjin, Peoples R China
[25] Southwest Med Univ, Dept Pediat, Affiliated Hosp, Luzhou, Peoples R China
[26] Huazhong Univ Sci & Technol, Tongji Med Coll, Dept Pediat, Wuhan, Hubei, Peoples R China
[27] Guangxi Med Univ, Dept Pediat, Affiliated Hosp 1, Nanning, Peoples R China
[28] Univ Sci & Technol China, Affiliated Hosp 1, Dept Pediat, Hefei, Anhui, Peoples R China
[29] Capital Med Univ, Dept Pediat, Beijing Childrens Hosp, Beijing, Peoples R China
[30] Peking Union Med Coll Hosp, Dept Pediat, Beijing, Peoples R China
[31] Jilin Univ, Dept Pediat, Hosp 1, Changchun, Jilin, Peoples R China
[32] West China Womens & Childrens Hosp, Dept Pediat, Chengdu, Sichuan, Peoples R China
[33] Fourth Mil Med Univ, Dept Pediat, Tangdu Hosp, Xian, Shaanxi, Peoples R China
[34] Maternal & Child Hlth Care Hosp Hainan Prov, Dept Pediat, Haikou, Hainan, Peoples R China
[35] Fujian Med Univ, Dept Pediat, Fujian Prov Matern & Childrens Hosp, Fuzhou, Fujian, Peoples R China
[36] Harbin Med Univ, Dept Pediat, Affiliated Hosp 2, Harbin, Heilongjiang, Peoples R China
[37] Inner Mongolia Autonomous Reg Peoples Hosp, Dept Pediat, Hohhot, Peoples R China
[38] Hunan Prov Peoples Hosp, Dept Pediat, Changsha, Hunan, Peoples R China
[39] Univ Ottawa, Sch Epidemiol Publ Hlth & Prevent Med, Ottawa, ON, Canada
[40] UCL, Inst Global Hlth, London, England