1. U-healthcare Team, LG CNS, Seoul
2. Department of Health Informatics, Graduate School of Public Health, Institute of Health Service Research, Yonsei University, Seoul
3. Department of Preventive Medicine, College of Medicine, Catholic University of Korea, Seoul
4. Research Institute of National Rehabilitation Center, Ministry for Health, Welfare and Family Affairs, Seoul
5. Graduate School of Healthcare Management and Policy, Catholic University of Korea, Seoul, Korea