Institution: | 1.Department of Internal Medicine, Cardiovascular Center, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea ;2.Cardiovascular Center, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi, Republic of Korea ;3.Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul, Republic of Korea ;4.Professor and Director of Cardiac Diagnostic Test Unit, Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, 03080, Seoul, Korea ; |