1. Shanghai Xinhua Hospital affiliated to Shanghai Jiao Tong University
School of Medicine, MOE and Shanghai Key Laboratory of Children’s
Environmental Health, Shanghai, China
2. Shanghai Pudong Center for Disease Control and Prevention, Shanghai, China
3. Department of Environmental
Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
4. Department of Biostatistics, Shanghai Jiao Tong University School of Medicine, Shanghai,
China
5. Shanghai Municipal Center for Disease Control and Prevention, Shanghai,
China