1. State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing China
2. Department of Family Planning The Second Hospital of Tianjin Medical University Tianjin China
3. School of Environmental Science and Safety Engineering Tianjin University of Technology Tianjin China
4. School of Quality and Technical Supervision Hebei University Baoding China
5. School of Geographic and Environmental Sciences Tianjin Normal University Tianjin China
6. Department of Occupational and Environmental Health School of Public Health Tianjin Medical University Tianjin China
7. Tianjin Key Laboratory of Environment, Nutrition, and Public Health Tianjin Medical University Tianjin China
8. Center for International Collaborative Research on Environment Nutrition and Public Health Tianjin China