1. Department of Health Management Centre, Zhongshan Hospital, Fudan University
2. Department of General Practice, Zhongshan Hospital, Fudan University
3. Department of Epidemiology, School of Public Health, Fudan University
4. Department of Scientific Research and Information Management, Pudong Institute of Preventive Medicine and
5. Department of Scientific Research and Information Management, Centers for Disease Control and Prevention, Pudong New Area