Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety College of Chemistry Fuzhou University Fuzhou China;
Tianjin Center for Disease Control and Prevention Tianjin China;
Institute of Disaster Medicine Tianjin University Tianjin China;
Institute of Disaster Medicine Tianjin University Tianjin China;
Institute of Disaster Medicine Tianjin University Tianjin China;
Spatial Epidemiology; Regions; Athletes; Bone Density;