1. Medical Research Council Population Health Research Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
2. Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
3. Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
4. Chinese Academy of Medical Sciences, Beijing, China
5. Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
6. China National Center For Food Safety Risk Assessment, Beijing, China
7. Licang CDC, Qingdao, Shandong Province, China
8. Heilongjiang CDC, Harbin, Heilongjiang Province, China
9. Zhejiang CDC, Hangzhou, Zhejiang Province, China
10. Meilan CDC, Haikou, Hainan Province, China
11. Liuyang CDC, Liuyang, Hunan Province, China