1 Institute of Medical Information/Center for Health Policy and Management, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
2 Department of Health Policy and Management, College of Public Health, University of Georgia, Athens, GA, United States.
3 School of Economics, Faculty of Humanities and Social Sciences, University of Nottingham Ningbo China, Ningbo, Zhejiang, China.
4 School of Public Health and Management, Hubei University of Medicine, Shiyan, Hubei, China.
5 Shenzhen Center for Disease Control and Prevention, Shenzhen, China.