1. School of Public Health, Key Laboratory of Public Health Safety; NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai, China
2. Department of Chronic Disease Prevention and Control, Xuhui District Center for Disease Control and Prevention, Shanghai, China
3. Dulwich International High School, Suzhou, China
4. School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada