1. Department of Cardiovascular Medicine (J.A.N., A.T., T.H., Y.N.V.R., B.A.B.), Mayo Clinic, Rochester, MN.
2. Department of Quantitative Health Sciences, Division of Clinical Trials and Biostatistics, Mayo Clinic, Jacksonville, FL (R.E.C.).
3. Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT (J.M.T.).
4. Department of Medicine, Division of Endocrinology, Diabetes and Metabolism (M.D.J.), Mayo Clinic, Rochester, MN.