1. Department of CardiologyUlsan University Hospital, University of Ulsan College of Medicine Ulsan South Korea
2. Department of CardiologyChungnam National University Hospital, Chungnam National University School of Medicine Daejeon South Korea
3. Department of Internal MedicineChungbuk National University College of Medicine Cheongju South Korea
4. Department of CardiologyKeimyung University Dongsan Medical Center Daegu South Korea
5. Department of CardiologyEulji University Hospital Daejeon South Korea
6. Department of CardiologyCheongju St. Mary's Hospital Cheongju South Korea
7. Department of Internal Medicine, School of MedicineKonkuk University Chungju South Korea
8. Department of CardiologyMediplex Sejong Hospital Bucheon South Korea
9. Department of CardiologyDaejeon St. Mary's Hospital, The Catholic University of Korea Seoul South Korea
10. Department of CardiologyDaegu Catholic University Medical Center Daegu South Korea
11. Department of CardiologySoonchunhyang University Bucheon Hospital Bucheon South Korea
12. Department of CardiologyAnyang Sam Hospital Anyang South Korea
13. Department of CardiologySoonchunhyang University Cheonan Hospital Cheonan South Korea
14. Department of CardiologySeoul National University Bundang Hospital Bundang South Korea
15. Department of CardiologyAjou University Hospital Suwon South Korea