1. Informatics Program, University of Utah College of Nursing and Department of Biomedical Informatics, University of Utah School of Medicine, Salt Lake City, Utah, USA
2. Department of Anaesthesiology and Pain Medicine, National Medical Centre, Seoul, Republic of Korea
3. Korea Health Industry Development Institute, Seoul, Republic of Korea
4. National Health Insurance Corporation, Seoul, Korea
5. Department of Clinical Pharmacology and Therapeutics, Department of Anaesthesiology and Pain Medicine, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
6. Department of Chronic Disease Surveillance, Korea Centres for Disease Control and Prevention, Ministry for Health, Welfare and Family Affairs, Seoul, Republic of Korea
7. College of Health Industry, Eulji University, Seongnam, Republic of Korea
8. School of Health Administration, Inje University, Kimhae, Republic of Korea