1. Department of Epidemiology and Health Statistics, The Key Laboratory of Typical Environmental Pollution and Health Hazards of Hunan Province, School of Basic Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
2. Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha410000, China
3. Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha410000, China
4. Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing210000, China
5. Department of Dermatology, Xiangya Hospital, Central South University, Changsha410000, China