1 From Division of Cardiology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea (Y.C., Y.S.L., M.-H.J., H.O.J., H.-J.Y.); Department of Biochemistry, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea (J.-H.L., M.N.C.); and Department of Cardiology, Department of Internal Medicine, Ewha Woman's University Mokdong Hospital, Ehwa Woman's University School of Medicine, Seoul, Republic of Korea (J.-E.Y.).
2 From Division of Cardiology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea (Y.C., Y.S.L., M.-H.J., H.O.J., H.-J.Y.); Department of Biochemistry, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea (J.-H.L., M.N.C.); and Department of Cardiology, Department of Internal Medicine, Ewha Woman's University Mokdong Hospital, Ehwa Woman's University School of Medicine, Seoul, Republic of Korea (J.-E.Y.). younhj@catholic.ac.kr.