1. Institute of Health Equity, Chinese University of Hong Kong Shatin New Territories Hong Kong
2. Department of Medicine and Therapeutics, Faculty of Medicine Chinese University of Hong Kong Shatin New Territories Hong Kong
3. Institute of Health Policy and Management, College of Public Health, National Taiwan University Taipei Taiwan
4. School of Public Health, Department of Health Policy and Management Seoul National University Seoul South Korea
5. Department of Health and Social Behavior, School of Public Health University of Tokyo Tokyo Japan
6. Department of Epidemiology and Public Health Institute of Health Equity, University College London London UK