1. Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China
2. Health Effects Institute, Boston, Massachusetts, USA
3. Epidemiology Branch, National Institute of Environmental Health Sciences, National
Institutes of Health, Department of Health and Human Services, Research
Triangle Park, North Carolina, USA
4. Shanghai Center of Disease Control and Prevention, Shanghai, China
5. Shanghai Environmental Monitoring Center, Shanghai, China
6. Department of Health Statistics, School of Public Health, Fudan University, Shanghai, China