1. Institute of Toxicology, College of Preventive Medicine Third Military Medical University (Army Medical University) Chongqing China
2. School of Public Healthy and Management Ningxia Medical University Yinchuan China
3. Key Laboratory of Environmental Factors and Chronic Disease Control Yinchuan China
4. Department of Environmental Health, College of Preventive Medicine Third Military Medical University (Army Medical University) Chongqing China