1. From the Washington University School of Medicine (J.M.L.), St. Louis, Mo; Lehigh Valley Hospital (D.A.C.), Allentown, Pa; Genesys Heart Institute (D.D.), Genesys Regional Medical Center, Grand Blanc, Mich; St. Paul Heart Clinic (K.B.), St. Paul, Minn; Pinnacle Health/Moffitt Heart and Vascular (W.B.B.), Harrisburg, Pa; Cardiology Consultants (E.W.R.), Pensacola, Fla; Krannert Institute of Cardiology (J.A.B.), Indiana University School of Medicine, Indianapolis, Ind; Wisconsin Heart and Vascular...