1 Chronic Disease Research Institute, Children's Hospital, and National Clinical Research Center for Child Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
2 Department of Nutrition and Food Hygiene, School of Public Health, Zhejiang University, Hangzhou, Zhejiang, China.
3 Emory University, Emory College of Arts and Science, Atlanta, GA, USA.
4 Krieger School of Arts and Sciences, John Hopkins University, Baltimore, MD, USA.
5 Chronic Disease Research Institute, Children's Hospital, and National Clinical Research Center for Child Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China. zsk@zju.edu.cn.
6 Department of Nutrition and Food Hygiene, School of Public Health, Zhejiang University, Hangzhou, Zhejiang, China. zsk@zju.edu.cn.