1. Department of Endocrinology, Affiliated Hospital of Qingdao University, Qingdao, China
2. National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, China
3. Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, NIH, Bethesda, Maryland
4. Department of Public Health Solutions, National Institute for Health and Welfare, Helsinki, Finland
5. Xiangya School of Public Health, Central South University, Changsha, China