[1] Zhejiang Univ, Sch Publ Hlth, Sch Med, Hangzhou, Peoples R China
[2] Zhejiang Univ, Womens Hosp, Sch Med, Hangzhou, Peoples R China
[3] Zhejiang Univ, Affiliated Hosp 4, Sch Med, Int Inst Med, Hangzhou, Peoples R China
[4] Chinese Univ Hong Kong, JC Sch Publ Hlth & Primary Care, Hong Kong, Peoples R China
[5] Zhejiang Prov Ctr Dis Control & Prevent, Dept Nutr & Food Safety, Hangzhou, Peoples R China
[6] Zhejiang Prov Ctr Dis Control & Prevent, Dept Nutr & Food Safety, 3399 Binsheng Rd, Hangzhou 310051, Peoples R China
[7] Zhejiang Univ, Sch Publ Hlth, Sch Med, 866 Yuhangtang Rd, Hangzhou 310058, Peoples R China
[8] Zhejiang Univ, Womens Hosp, Sch Med, 866 Yuhangtang Rd, Hangzhou 310058, Peoples R China