1. From the Cardiovascular Institute, El Camino Hospital, Mountain View, CA (G.W.S., F.G.S.G.); Case Western Reserve University, Cleveland, Ohio (J.M.H., H.S.); Herz Zentrum, Bad Krozingen, Germany (A.F.); Klinikum Innenstadt, University of Munich, Germany (H.M.); and St Vincent’s Hospital, Indianapolis, Ind (T.J.L.).