1. Division of Cardiology Department of Internal Medicine Severance Hospital Yonsei University College of Medicine Seoul South Korea
2. Department of Cardiology Gil Hospital Gachon University Incheon South Korea
3. Division of Cardiology Department of Internal Medicine Bucheon St. Mary's Hospital The Catholic University of Korea Seoul South Korea
4. Department of Cardiology Kyung Hee University Hospital at Gangdong Seoul South Korea
5. Department of Internal Medicine Kyung Hee University College of Medicine Kyung Hee University Medical Center Seoul South Korea
6. Division of Interventional Cardiology Cardiovascular Center Korea University Guro Hospital Seoul South Korea
7. Division of Cardiology Department of Internal Medicine Korea University Anam Hospital Seoul South Korea
8. Division of Cardiology Department of Internal Medicine Pusan National University School of Medicine Busan South Korea
9. Division of Cardiology Department of Internal Medicine Seoul National University College of Medicine Seoul National University Bundang Hospital Seongnam South Korea
10. Division of Cardiology Department of Internal Medicine Boramae Medical Center Seoul National University College of Medicine Seoul South Korea
11. Division of Cardiology Department of Medicine Inje University Ilsan Paik Hospital Goyang South Korea
12. Division of Cardiology Department of Internal Medicine Wonju Severance Christian Hospital Yonsei University Wonju College of Medicine Wonju South Korea
13. Department of Cardiology in Internal Medicine, Chungnam National University Hospital School of Medicine, Chungnam National University Daejeon South Korea
14. Division of Cardiology Department of Internal Medicine Chungbuk National University Hospital Chungbuk National University College of Medicine Cheongju South Korea
15. Division of Cardiology Chonnam National University Medical School Chonnam National University Hopital Gwangju South Korea
16. Division of Cardiology Department of Internal Medicine Kosin University Gospel Hospital Busan South Korea
17. Division of Cardiology Department of Internal Medicine Hanyang University Seoul Hospital Hanyang University College of Medicine Seoul South Korea