1. Center for Health Policy Studies; Zhejiang University School of Medicine in Zijingang Campus; Hangzhou China
2. Institute of Public Health; Heidelberg University; Heidelberg Germany
3. Global Health, Department of Public Health Sciences; Karolinska Institutet; Stockholm Sweden
4. School of Health, Care and Social Welfare; Malardalen University; Eskilstuna Sweden
5. Department of Social Medicine and Health Education, School of Public Health; Nanjing Medical University; Nanjing China
6. Department of Family Medicine, School of Medicine; Sir Run Run Shaw Hospital of Zhejiang University; Hangzhou China
7. School of Community Health; Portland State University; Portland Oregon USA