1. Division of Cardiology Department of Internal Medicine Yeouido St. Mary's Hospital Catholic University College of Medicine Seoul South Korea
2. Division of Cardiology Department of Internal Medicine Dong‐A University Hospital Dong‐A University College of Medicine Busan South Korea
3. Division of Cardiology Department of Internal Medicine Asan Medical Center University of Ulsan Seoul South Korea
4. Division of Cardiology Department of Internal Medicine Seoul St. Mary's Hospital Catholic University College of Medicine Seoul South Korea
5. Division of Cardiology Department of Internal Medicine Seoul National University Bundang Hospital Seoul National University College of Medicine Seongnam South Korea
6. Division of Cardiology Department of Internal Medicine Gil Hospital Gachon University College of Medicine Incheon South Korea
7. Division of Cardiology Department of Internal Medicine Hanyang University Hospital Hanyang University College of Medicine Seoul South Korea
8. Division of Cardiology Department of Internal Medicine Korea University Ansan Hospital Korea University College of Medicine Ansan South Korea
9. Division of Cardiology Department of Internal Medicine Kangnam Sacred Heart Hospital Hallym University College of Medicine Seoul South Korea
10. Division of Cardiology Department of Internal Medicine Yeungnam University Hospital Yeungnam University College of Medicine Daegu South Korea
11. Division of Cardiology Department of Internal Medicine Inje University Ilsan Paik Hospital Inje University College of Medicine Goyang South Korea
12. Division of Cardiology Department of Internal Medicine Kyung Hee University Hospital Kyung Hee University College of Medicine Seoul South Korea
13. Division of Cardiology Department of Internal Medicine Korea University Anam Hospital Korea University College of Medicine Seoul South Korea
14. Division of Cardiology Department of Internal Medicine Dongguk University Ilsan Hospital Dongguk University College of Medicine Goyang South Korea
15. Division of Cardiology Department of Internal Medicine Chonnam National University Hospital Chonnam National University College of Medicine Gwangju South Korea
16. Division of Cardiology Department of Internal Medicine CAH Bundang Medical Center CHA University College of Medicine Seongnam South Korea
17. Division of Cardiology Department of Internal Medicine Daegu Catholic University Hospital Daegu Catholic University College of Medicine Daegu South Korea
18. Division of Cardiology Department of Internal Medicine Ajou University Hospital Ajou University College of Medicine Suwon South Korea
19. Division of Cardiology Department of Internal Medicine Soonchunhyang University Seoul Hospital Soonchunhyang University College of Medicine Seoul South Korea
20. Division of Cardiology Department of Internal Medicine Gyeongsang National University Hospital Gyeongsang National University College of Medicine Jinju South Korea
21. Division of Cardiology Department of Internal Medicine Ewha Womans University Mokdong Hospital Ewha Womans University College of Medicine Seoul South Korea
22. Division of Cardiology Department of Internal Medicine Pusan National University Hospital Pusan National University College of Medicine Busan South Korea
23. Division of Cardiology Department of Internal Medicine Bucheon St. Mary's Hospital Catholic University College of Medicine Bucheon South Korea
24. Division of Cardiology Department of Internal Medicine Chungnam National University Hospital Chungnam National University College of Medicine Daejeon South Korea
25. Division of Cardiology Department of Internal Medicine Wonju Severance Christian Hospital Yonsei University Wonju College of Medicine Wonju South Korea
26. Division of Cardiology Department of Internal Medicine Seoul National University Hospital Seoul National University College of Medicine Seoul South Korea