1. Department of Occupational and Environmental Health and Key Laboratory of Environmental and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College; Huazhong University of Science and Technology; Wuhan P.R. China
2. Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College; Huazhong University of Science and Technology; Wuhan P.R. China
3. Dongfeng Central Hospital; Dongfeng Motor Corporation and Hubei University of Medicine; Shiyan Hubei P.R. China