1. Vascular Malformation Unit, Department of Surgery, Istituto, Clinica Guarnieri, Via Tor de’ Schiavi, 139, 00172, Rome (RM), Italy
2. Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Vascular Surgery Unit, University of Rome La Sapienza, Via di Grottarossa 1035/1039, 00189Rome, Italy
3. Department of Public Health, University of Naples “Federico II”, via Sergio Pansini, 5 – 80131, Naples, Italy