1. Vascular Surgery, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Viale Brambilla 74, 27100 Pavia, Italy
2. Department of Vascular Surgery, Policlinico di Monza Hospital, Via Amati 111, 20900 Monza, Italy
3. Vascular Surgery, Department of Integrated Surgical and Diagnostic Sciences, University of Genoa, Viale Benedetto XV 6, 16132 Genoa, Italy