1. Department of Health Care Administration and Management, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
2. Department of Preventive Medicine and Community Health, University of Occupational and Environmental Health, Kitakyushu, Japan.
3. Epidemiology and Prevention Department, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan.
4. Faculty of Human Sciences, Osaka University of Economics, Osaka, Japan.
5. Department of Intensive Care Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan.
6. St. Mary's Research Center, St. Mary's Hospital, Kurume, Japan.
7. Health Administration Program, Faculty of Business & Management, Universiti Teknologi MARA, Selangor, Malaysia.