1. Department of Healthcare Management, College of Health Science, Eulji University, Republic of Korea
2. Global Health Unit, Department of Health Sciences, University Medical Centre Groningen, University of Groningen, The Netherlands
3. Department of Physical Therapy, College of Health Science, Eulji University, Republic of Korea
4. Faculty of Liberal Arts, Eulji University: 304-1 Main Building, 553 Sanseongdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 461-713, Republic of Korea