1. From the Department of Internal Medicine (A.B.A., L.L.H.), Section of Nephrology and Hypertension and the Tulane Hypertension and Renal Center of Excellence, Tulane University Health Sciences Center, New Orleans, La; Departments of Epidemiology (W.C., S.R.S., G.S.B.) and Biostatistics (L.Y.), Tulane University School of Public Health and Tropical Medicine, New Orleans, La; and Tulane Center for Cardiovascular Health (G.S.B.), Tulane University Health Sciences Center, New Orleans, La.