1. Department of Public Health, Keimyung University, Daegu, Korea.
2. Institute of Health Policy and Management, Seoul National University Medical Research Center, Seoul, Korea.
3. Big Data Steering Department, National Health Insurance Service, Wonju, Korea.
4. Department of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.
5. The People's Health Institute, Seoul, Korea.
6. Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
7. Gwanak Branch Office, National Health Insurance Service, Seoul, Korea.