1. From the Division of Cardiology, Department of Internal Medicine, Severance Cardiovascular Hospital (B.-K.K., D.-H.S., M.-K.H., J.-S.K., Y.J.), Severance Biomedical Science Institute (M.-K.H., Y.J.), and Kangnam Severance Hospital (B.-K.H.), Yonsei University College of Medicine, Seoul, Korea; Kyungpook National University Hospital, Taegu, Korea (H.S.P.); Korea University Guro Hospital, Seoul, Korea (S.-W.R.); Cardiovascular Research Foundation, New York, NY (G.S.M.); Sejong General Hospital,...