1. Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China
2. Department of Toxicology and Sanitary Chemistry, School of Public Health, Tianjin Medical University, Tianjin, China
3. School of Public Health of Tianjin University of Traditional Chinese Medicine, Tianjin, China
4. Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
5. Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China
6. Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China