1. Division of Cardiology, Department of Internal Medicine Chungnam National University Hospital 282 Munhwa‐ro, Jung‐gu Daejeon 35015 Republic of Korea
2. Division of Cardiology, Department of Medicine, Heart Vascular Stroke Institute, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul Republic of Korea
3. Division of Cardiology, Severance Cardiovascular Hospital Yonsei University College of Medicine Seoul Republic of Korea
4. Division of Cardiology, Department of Internal Medicine Korea University Anam Hospital Seoul Republic of Korea
5. Department of Cardiology, Samsung Changwon Hospital Sungkyunkwan University School of Medicine Changwon Republic of Korea
6. Department of Cardiology Ewha Woman's University Seoul Hospital, Ehwa Woman's University School of Medicine Seoul Republic of Korea
7. Division of Cardiology, Department of Medicine Konkuk University Medical Center Seoul South Korea
8. Department of Internal Medicine Chungbuk National University College of Medicine Cheongju Republic of Korea
9. Division of Cardiology, Department of Internal Medicine, Ilsan Paik Hospital University of Inje College of Medicine Seoul Republic of Korea
10. Division of Cardiology, Department of Medicine Sejong General Hospital Bucheon Republic of Korea
11. Division of Cardiology, Department of Medicine Chung‐Ang University Hospital Seoul Republic of Korea
12. Division of Cardiology, Department of Medicine Inha University Hospital Incheon Republic of Korea
13. Division of Cardiovascular Medicine, Department of Internal Medicine, Dankook University Hospital Dankook University College of Medicine Cheonan Republic of Korea
14. Biostatistics and Clinical Epidemiology Center, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul Republic of Korea