1. School of Public Health and Management; Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University; Chongqing China
2. Department of Public Health, Guiyang Center for Disease Control and Prevention; Guiyang China
3. Center of Experimental Medicine, Chongqing Municipal Hospital for Prevention and Control of Occupational Diseases; Chongqing China
4. Department of Statistics, School of Public Health and Management; Chongqing Medical University; Chongqing China
5. The Liggins Institute, University of Auckland; Auckland New Zealand
6. China-Canada-New Zealand Joint Laboratory of Maternal and Fetal Medicine; Chongqing Medical University; Chongqing China
7. College of Medicine, Biological Sciences and Psychology; University of Leicester; Leicester United Kingdom