1. West China Second University Hospital of Sichuan University and Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, People’s Republic of China
2. Department of Health Related Social and Behavioral Science, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, People’s Republic of China
3. School of Resources and Environmental Science, Wuhan University, Wuhan, People’s Republic of China
4. International Institute of Spatial Lifecourse Epidemiology (ISLE), Hong Kong, People’s Republic of China
5. Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
6. Pidu District Center for Disease Control and Prevention, Chengdu, People’s Republic of China
7. Lu County Center for Disease Control and Prevention, Luzhou, People’s Republic of China
8. Department of epidemiology and statistics, School of Public Health, Southwest Medical University, Luzhou, People’s Republic of China
9. Centre for Health Behaviors Research, The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, People’s Republic of China