1. From the Division of Hematology/Oncology (S.A., M.R., N.M., and R.P.), Department of Medicine, UNC McAllister Heart Institute, University of North Carolina at Chapel Hill; the Division of Cardiothoracic Surgery (D.S. and E.D.V.), University of Washington, Seattle; and the Aab Cardiovascular Research Institute (T.A.B. and B.C.B.), University of Rochester Medical Center, Rochester, NY.