1. Department of Health Policy and Management, School of Public Health, Fudan University, China
2. Research Institute of Health Development Strategies, Fudan University, China
3. Changning District Xinhua Street Community Health Service Center, China
4. Changning District Center for Disease Control and Prevention, China
5. Division of Health Services Research, Department of Foundations of Medicine, New York University Long Island School of Medicine, USA
6. Department of Epidemiology, School of Public Health, Fudan University, China
7. School of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Sweden