1 Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, Jiangsu, China.
2 Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, Jiangsu, China.
3 Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 210000, Jiangsu, China.
4 School of Public Health, Nantong University, Nantong 226000, Jiangsu, China.