1. Department of Environmental Epidemiology, Liaoning Provincial Center for Disease Prevention and Control, Shenyang, People’s Republic of China
2. Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
3. Department of Environmental Epidemiology, University of Occupational and Environmental Health, Kitakyushu, Japan
4. Department of Hygiene and Preventive Medicine, Showa University, School of Medicine, Tokyo, Japan
5. Department of Infectious Disease, Shenyang Municipal Center for Disease Prevention and Control, Shenyang, People’s Republic of China
6. Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, Tokyo, Japan