1. Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin , China
2. School of Public Health of Tianjin University of Traditional Chinese Medicine , Tianjin , China
3. Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University , Tianjin , China
4. Department of Toxicology and Sanitary Chemistry , School of Public Health, , Tianjin , China
5. Tianjin Medical University , School of Public Health, , Tianjin , China
6. Department of Epidemiology and Biostatistics , School of Public Health, , Beijing , China
7. Peking University Health Science Center , School of Public Health, , Beijing , China
8. Tianjin Key Laboratory of Environment, Nutrition and Public Health , Tianjin , China
9. Center for International Collaborative Research on Environment, Nutrition and Public Health , Tianjin , China