School of Population Medicine and Public Health Chinese Academy of Medical Sciences & Peking Union Medical College 5 Dongdan Santiao Beijing 100730 China;
School of Population Medicine and Public Health Chinese Academy of Medical Sciences & Peking Union Medical College 5 Dongdan Santiao Beijing 100730 China;
Xuzhou central hospital 199 Jiefang South Road Xuzhou 221009 China;
School of Population Medicine and Public Health Chinese Academy of Medical Sciences & Peking Union Medical College 5 Dongdan Santiao Beijing 100730 China;
School of Health Policy and Management Chinese Academy of Medical Sciences & Peking Union Medical College 5 Dongdan Santiao Beijing 100730 China;
School of Public Health Rutgers University 683 Hoes Lane West Piscataway NJ 08854 USA;
Jiangsu Provincial Center for Disease Control and Prevention 172 Jiangsu Road Nanjing 210009 China;