1. From Cardiovascular Medicine (P.R.L., N.K.L.) and Department of Medicine (B.A.B.), Brigham and Women’s Hospital, Boston, MA; Harvard Medical School, Boston, MA (P.R.L., B.A.B., J.P.L., N.K.L.); Dana Farber Cancer Institute, Boston, MA (J.P.L.); and Cardiology, Veterans Affairs Boston Healthcare System, Boston, MA (N.K.L.).