1. From the Cardiovascular Research and Teaching Institute, Aalst, Belgium (P.B.); the New York Heart Center, Syracuse, New York (R.B.); Thorax Institute, Hospital Clinic, University of Barcelona, Barcelona, Spain (J.B.); Molecular Cardiology Laboratories IRCCS, Fondazione S Maugeri, Pavia, Italy (S.G.P., C.N.); and the Department of Cardiology, University of Pavia, Pavia, Italy (S.G.P.).