1. From the Division of Cardiovascular Disease (B-J.C., Y.M., T.A., T-G.K., A.P., R.G., A.L.), Division of Biomedical Statistics and Informatics (R.J.L.), and Division of Nephrology and Hypertension (L.O.L.), Mayo Clinic, Rochester, MN; and Department of Cardiology, Ajou University School of Medicine, Suwon, South Korea (B-J.C.).