1 Heart Institute - Germans Trias i Pujol University Hospital, Badalona, Barcelona, Spain.
2 Heart Institute - Germans Trias i Pujol University Hospital, Badalona, Barcelona, Spain; Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain. Electronic address: [email protected].