1. Health Insurance Review and Assessment (HIRA) Research Institute, Wonju, Korea.
2. Drug Utilization Review (DUR) Operation Division, DUR Department, Health Insurance Review and Assessment Service (HIRA), Wonju, Korea.
3. Department of Health Administration, College of Nursing and Health, Kongju National University, Gongju, Korea.
4. Department of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.
5. Public Healthcare Center, Seoul National University Hospital, Seoul, Korea.