1. Department of Cardiovascular and Pulmonary Sciences Catholic University of the Sacred Heart Rome Italy
2. Center of Excellence in Cardiovascular Sciences Isola Tiberina Hospital Gemelli Isola Rome Italy
3. Department of Cardiovascular Medicine Fondazione Policlinico Universitario A. Gemelli IRCCS Rome Italy
4. S.C. Medicina Generale 1 Medical Center, Ospedale di Circolo e Fondazione Macchi, Department of Internal Medicine, ASST Sette Laghi Varese Italy
5. Robert M. Berne Cardiovascular Research Center and Division of Cardiovascular Medicine, Department of Medicine, Heart and Vascular Center University of Virginia Charlottesville Virginia USA
6. Department of Cardiology, De Gasperis Cardio Center, ASST Grande Ospedale Metropolitano Niguarda Milan Italy
7. Division of Pediatric Cardiology, Department of Pediatrics Duke University Medical Center 2301 Erwin Road, DUMC Box 3127 Durham NC USA
8. Unit of Immunology, Rheumatology, Allergy and Rare Diseases IRCCS San Raffaele Hospital, Vita‐Salute San Raffaele University Milan Italy