1. Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
2. Peking University Institute of Environmental Medicine, Beijing, China
3. Chinese Academy of Medical Sciences, Beijing, China
4. Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, UK
5. Hainan Center for Disease Control & Prevention, Haikou, Hainan, China
6. Licang Center for Disease Control & Prevention, Qingdao, Shandong, China
7. China National Center for Food Safety Risk Assessment, Beijing, China
8. Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
9. Department of Nutrition, Harvard School of Public Health, Boston, MA, USA