1. Department of Health Administration, College of Health Science, Dankook University, Cheonan, Korea
2. Institute of Health Promotion and Policy, Dankook University, Cheonan, Korea
3. Department of Public Health, Korea University, Seoul, Korea
4. Department of Humanities and Social Medicine, College of Medicine, the Catholic University of Korea, Seoul, Korea
5. Catholic Institute for Healthcare Management, the Catholic University of Korea, Seoul, Korea
6. Department of Health Administration, College of Science and Technology, Yonsei University, Wonju, Korea
7. Department of Information and Statistics, College of Health Sciences, Yonsei University, Wonju, Korea