From the Department of Internal Medicine II, Division of Cardiology (N.S.-S., R.S.-K., D.B., J.J., I.M.L.), Section of Medical Statistics (N.H.), Department of Cardiothoracic Surgery (W.K., M.A.R.H.), Vienna General Hospital, Medical University of Vienna; Wilhelminenspital der Stadt Wien (M.P.K.), Vienna, Austria; and the Division of Pulmonary and Critical Care Medicine (P.F.), University of California, San Diego, Calif. (At 2009-01-20)