1. Department of Health Related Social and Behavioral Science, West China School of Public Health, Sichuan University, Chengdu, China;
2. Department of Epidemiology and Statistics, School of Public Health, Southwest Medical University, Luzhou, China;
3. Department of Tumor, Chengdu Medical University, Chengdu, China;
4. Department of Reproductive Endocrinology, West China Second University Hospital/West China Women’s and Children’s Hospital, Chengdu, China;
5. Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China