1. From the New York–Presbyterian Hospital, Columbia University Medical Center and The Cardiovascular Research Foundation, New York, NY (G.W.S., H.P., M.F.); Maasstad Ziekenhuis, Rotterdam, the Netherlands (E.K., P.C.S.); The Christ Hospital Heart and Vascular Center/Lindner Research Center, Cincinnati, OH (D.J.K.); and Thoraxcenter, Erasmus Medical Center, Rotterdam, the Netherlands (P.W.S.).