1. National Cancer Control Institute, National Cancer Center, Goyang, Korea.
2. National Health Insurance Services, Seoul, Korea.
3. Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea.
4. Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea.
5. Department of Public Health, Graduate School, Yonsei University, Seoul, Korea.
6. Department of Health Administration, Namseoul University, Cheonan, Korea.
7. Department of Healthcare Management, Eulji University, Seongnam, Korea.
8. Department of Health Services Policy and Management, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA.
9. Department of Hospital Management, Graduate School of Public Health, Yonsei University, Seoul, Korea.