1 Bambini Cardiopatici nel Mondo Association NGO, Milano, Italy.
2 Department of Pediatric and Adult Congenital Cardiac Surgery, IRCCS Policlinico San Donato, Milano, Italy.
3 Pediatric and Congenital Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy.