1. From the Valvular Heart Disease Clinic, Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Woluwe St. Lambert, Belgium (G.B.-R., S.P., S.S., C.d.M.d.R., J.M., F.M., A.-C.P., D.V., A.P., J.-L.V., B.L.G.); and Pôle de Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium (G.B.-R., S.P., S.S., C.d.M.d.R., J.M., F.M., A.-C.P., D.V., A.P., J.-L.V., B.L.G.).