1. Department of Orthopedic Surgery Suwa Central Hospital Nagano Japan
2. Department of Epidemiology Harvard T.H.Chan School of Public Health Boston Massachusetts USA
3. Department of Orthopaedic and Spine Surgery Tokyo Medical and Dental University Tokyo Japan
4. Division of Orthopedic Surgery Tel Aviv Sourasky Medical Center, Affiliated with Tel Aviv University Tel Aviv Israel
5. Department of Global Health and Population Harvard University, Dental University Boston Massachusetts USA
6. Office for Global Education and Career Development Tokyo Medical and Dental University Tokyo Japan
7. Department of Tokyo Metropolitan Health Policy Advisement, Graduate School of Medicine Tokyo Medical and Dental University Tokyo Japan
8. Department of Health Policy and Informatics Tokyo Medical and Dental University Tokyo Japan
9. Department of Global Health Promotion Tokyo Medical and Dental University Tokyo Japan