1. Vascular Surgery Unit, ASST Fatebenefratelli-Sacco, Milan, Italy
2. Laboratory of Research in Vascular Surgery, IRCCS Istituto Auxologico Italiano, Milan, Italy
3. Vascular Surgery Unit, IRCCS Istituto Auxologico Italiano, Milan, Italy
4. Vascular Surgery Unit, IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
5. Department of Clinical and Community Sciences, University of Milan, Milan, Italy