1. Institute for Global Public Policy, Fudan University, Shanghai, China
2. LSE-Fudan Research Center for Global Public Policy, Fudan University, Shanghai, China
3. School of Public Health, Peking University, Beijing, China
4. China Center for Health Development Studies, Peking University, Beijing, China
5. School of Population Medicine and Public Health, Chinese Academy of Medical Sciences / Peking Union Medical College, Beijing, China