1. Division
of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Service, Rockville, Maryland 20850, United States
2. Institute
for Risk Assessment Sciences, Division of Environmental Epidemiology, Utrecht University, Utrecht 3508 TD, The Netherlands
3. China National Environmental Monitoring Center, Beijing 100029, People’s Republic of China
4. College
of Public Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
5. Chinese University of Hong Kong, Hong Kong, People’s Republic of China