1 Department of Occupational and Environmental Health, School of Public Health, Wuhan University, 430071 Wuhan, P.R. China.
2 Institute of Global Health, Wuhan University, 430071 Wuhan, P.R. China.
3 Central Laboratory of the Fourth Affiliated Hospital in Xiangyang, College of Basic Medical Sciences, Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, 442000 Shiyan, P.R. China.
4 Wuhan Hospital for the Prevention and Treatment of Occupational Diseases, 430071 Wuhan, P.R. China.
5 The Third Xiang-ya Hospital of Central South University, 410013 Changsha, P.R. China.