1. From the Cardiac Department (I.M., E.P., A.B., L.J.J.-B., F.A.), Radiology Department (M.J.O.), and Anatomical Pathology Department (A.A.), Hospital Universitario de La Princesa, IIS-IP, Universidad Autónoma de Madrid, Madrid, Spain, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (L.J.J.-B).