1. Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
2. School of Political Science and Public Administration, Shandong University, Jinan, China
3. Department of Sociology and Public Health Research Center, Tsinghua University, Beijing, China
4. Sobell House, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
5. Harris Manchester College and Nuffield Department of Medicine, Oxford University, Oxford, UK