1. From the Unit of Pharmacology and Therapeutics (P.B.M., C.D., F.D., M.P., C.B., O.F., J.-L.B.), FATH 5349, Unit of Cardiology (X.H.), Department of Medicine, Unit of Anatomopathology (P.M., Y.G.), Université Catholique de Louvain, Brussels, Belgium, and Division of Cardiology (S.J.), Katholieke Universiteit Leuven, Leuven, Belgium.