1 Department of Cardiology, De Gasperis Cardio Center, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy. Electronic address: iside.cartella@ospedaleniguarda.it.
2 Department of Cardiology, De Gasperis Cardio Center, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy.
3 Department of Pediatric Cardiology, Azienda Ospedaliera di Padova, Italy.
4 Department of Cardiology, Fondazione Poliambulanza Brescia, Italy.
5 Department of Anatomic Pathology, ASST Fatebenefratelli Sacco, Milan, Italy.