[1] Kangwon National University School of Medicine,Department of Internal Medicine, Division of Cardiology
[2] Korea University Guro Hospital,Cardiovascular Center
[3] Korea University Graduate School,Department of Medicine
[4] Seoul St. Mary’s Hospital,Cardiovascular Center
[5] the Catholic University of Korea,Cardiology Department
[6] Konkuk University Chungju Hospital,Department of Internal Medicine, Cardiovascular Division
[7] Dankook University Hospital,Department of Cardiology
[8] Soonchunhyang University Gumi Hospital,Cardiology Department
[9] Soonchunhyang University Cheonan Hospital,Department of Internal Medicine, Division of Cardiology, Cardiovascular Center, Nowon Eulji Medical Center
[10] Eulji University,Department of Cardiology
[11] Soonchunhyang University College of Medicine,undefined