1. Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
2. Hubei Provincial Key Laboratory for Applied Toxicology and
3. Institute of Chronic Noncommunicable Disease Control and Prevention, Hubei Provincial Center for Disease Control and Prevention, Wuhan, China
4. National Meteorological Information Center, Beijing, China; and
5. Department of Neurology, Tongji Hospital, and
6. Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China