1. Internal Medicine Division, Research Foundation, and Clinical Pharmacology, Ospedale Papa Giovanni XXIII, Bergamo, Italy
2. Cardiology Department, Maria Vittoria Hospital and Department of Public Health and Pediatrics, University of Torino, Torino, Italy
3. IRCCS Istituto G. Gaslini, Pediatria II, Genova, Italy
4. Cardiology Department, Maria Vittoria Hospital and Department of Public Health and Pediatrics, University of Torino, Torino, Italy4Department of Cardiology, University of Athens Medical School, Hippokration Hospital, Athens, Greece
5. Clinical Immunology, Department of Medicine, Azienda Ospedaliera-Università, Padova, Italy
6. Reumatologia, Azienda Ospedaliero-Universitaria di Sassari, Sassari, Italy
7. University Cardiology Division, Department of Medical Sciences, Città della Scienza e della Salute, Torino, Italy
8. IRCCS Istituto G. Gaslini, Pediatria II, Genova, Italy8University of Genova, Genova, Italy