1. Department of Public Health, Yonsei University Graduate School, Seoul, Korea.
2. Institute of Health Services Research, Yonsei University, Seoul, Korea.
3. Department of Preventive Medicine, Gachon University College of Medicine, Incheon, Korea.
4. Center for Public Healthcare, Gachon University Gil Medical Center, Incheon, Korea.
5. Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea.
6. Department of Medical Device Engineering and Management, Yonsei University Graduate School, Seoul, Korea.
7. Health IT Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.