Affiliation
From the Department of Internal Medicine (M.G.B., A.B.), Southern Illinois University School of Medicine, Springfield, IL.; Division of General Internal Medicine, Hypertension Section, Department of Internal Medicine (V.P., B.A., J.M.F.), Southern Illinois University School of Medicine, Springfield, IL.; From the Department of Internal Medicine (M.G.B., A.B.), Southern Illinois University School of Medicine, Springfield, IL.; Division of General Internal Medicine, Hypertension Section, Department of Internal Medicine (V.P., B.A., J.M.F.), Southern Illinois University School of Medicine, Springfield, IL.; Renal-Electrolyte and Hypertension Division (J.B.C.).; Division of Nephrology, Department of Medicine, Case Western Reserve University, Cleveland, OH (M.R.).; Department of Medicine, University of Maryland School of Medicine, Baltimore, MD (M.R.W.).; Division of Nephrology, Department of Medicine, University of Illinois at Chicago, Chicago, IL (A.C.R.).; Center for Clinical Research (M.G.B., A.B.), Southern Illinois University School of Medicine, Springfield, IL.