1. Vascular Surgery Unit Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico Milan Italy
2. Department of Clinical and Community Sciences University of Milan Milan Italy
3. Division of Vascular Surgery, Department of Cardiovascular Surgery Fondazione Poliambulanza Brescia Italy
4. Department of Medicine and Surgery University of Insubria School of Medicine and ASST Settelaghi Varese Italy