1. Division of Cardiology, Department of Internal MedicineYonsei University Wonju College of Medicine, Wonju Severance Christian Hospital Wonju Republic of Korea
2. Department of CardiologySt. Carollo Hospital Republic of Korea
3. Department of Cardiology, Department of Internal MedicineGachon University Gil Medical Center Incheon Republic of Korea
4. Division of Cardiology, Department of Internal MedicinePresbyterian Medical Center Jeonju Republic of Korea
5. Department of CardiologySoon Chun Hyang University Cheonan Hospital Cheonan Republic of Korea
6. Division of Cardiovascular disease, College of MedicineDankook University Hospital Cheonan Republic of Korea
7. Eulji University School of Medicine, Division of CardiologyEulji Medical Center Daejeon Republic of Korea
8. Department of CardiologyHanyang University Hospital Seoul Republic of Korea
9. Department of Cardiology, Cardiovascular CenterKorea University Anam Hospital Seoul Republic of Korea
10. Department of Cardiology, Samsung Changwon HospitalSungkyunkwan University School of Medicine Changwon Republic of Korea
11. Department of Cardiology, Cardiovascular CenterChonnam National University Hospital Republic of Korea