1. Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
2. Chinese Academy of Medical Sciences, Beijing, China
3. Sichuan CDC, Chengdu, Sichuan, China
4. Shimen Town Health Center, Tongxiang, Zhejiang, China
5. Noncommunicable Diseases Prevention and Control Department, Tongxiang Center for Disease Control and Prevention, Tongxiang, Zhejiang, China
6. China National Center for Food Safety Risk Assessment, Beijing, China