1. Cardiovascular Center Dongtan Sacred Heart Hospital Hallym University College of Medicine Hwaseong Republic of Korea
2. Division of Cardiology Department of Internal Medicine Chungbuk National University College of Medicine Cheongju Republic of Korea
3. Division of Cardiology Severance Cardiovascular Hospital and Cardiovascular Research Institute Yonsei University College of Medicine Seoul Republic of Korea
4. Division of Cardiology Department of Internal Medicine Hanyang University College of Medicine Seoul Republic of Korea
5. Cardiovascular Center Seoul National University Bundang Hospital Seoul National University College of Medicine Seongnam Republic of Korea
6. Department of Internal Medicine Konkuk University Medical Center Konkuk University School of Medicine Seoul Republic of Korea
7. Division of Cardiology Asan Medical Center University of Ulsan College of Medicine Seoul Republic of Korea
8. Department of Internal Medicine Seoul National University College of MedicineBoramae Medical Center Seoul Republic of Korea
9. Heart Research Institute ChungAng University Hospital Seoul Republic of Korea
10. Division of Cardiology Department of Internal Medicine Ewha Womans University Medical Center Seoul Republic of Korea
11. Department of Statistics and Computer Science Daegu University Gyeongbuk Republic of Korea
12. Division of Cardiology Department of Internal Medicine Seoul National University Hospital Seoul Republic of Korea
13. Division of Cardiology Department of Internal Medicine Gil Hospital Gachon University Incheon Republic of Korea
14. Division of Cardiology Department of Internal Medicine Bucheon St. Mary’s Hospital The Catholic University of Korea Seoul Republic of Korea
15. Division of Cardiology Department of Internal Medicine Yeouido St. Mary’s Hospital The Catholic University of Korea Seoul Republic of Korea
16. Division of Cardiology Department of Internal Medicine Kyung Hee University at Gangdong Seoul Republic of Korea
17. Division of Cardiology Department of Internal Medicine Eulji University Medical Center Seoul Republic of Korea
18. Cardiovascular Center Dongguk University Ilsan Hospital Goyang‐si Republic of Korea
19. Division of Cardiology Department of Internal Medicine Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine Seoul Republic of Korea