University of Padua, University of Alberta - Department of Laboratory Medicine and Pathology, University of Padua - Department of Cardiac, Thoracic, and Vascular Sciences, Stanford University - Department of Pathology, Sorbonne University - Department of Cardiac Surgery, Necker-Enfants Malades Hospital, Medical University of Graz, University of California, Los Angeles (UCLA) - UCLA Immunogenetics Center, Padua University - Department of Cardio-Thoraco-Vascular Sciences and Public Health and Intermountain Cental Laboratory