| Affiliation: | 1. Department of Family Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea;2. Department of Cardiology and Cardiovascular Imaging Center, Cardiac and Vascular Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea;3. Department of Epidemiology, School of Public Health and Institute of Health Environment, Seoul National University, Seoul, South Korea;4. Department of Family Medicine, Busan Paik Hospital, School of Medicine, Inje University, Busan, South Korea |
