From the Center for Cardiovascular Disease Prevention and the Department of Medicine (P.M.R.), Brigham and Women’s Hospital, Boston, Mass; the Divisions of Clinical Pharmacology (N.J.B.) and Cardiovascular Medicine (D.E.V.), Vanderbilt University Medical Center, Nashville, Tenn; the Division of Cardiology (D.G.H.), Emory University, Atlanta, Ga; and the Division of Cardiovascular Medicine (J.L.M.), University of Arkansas, Little Rock, Ark. (2004-06-29時点)