[1] Ist Ricovero & Cura Carattere Sci Ca Granda Osped, Vasc Surg Unit, Via Sforza 35, I-20122 Milan, Italy
[2] Univ Insubria, Sch Med, Dept Med & Surg, Varese, Italy
[3] Azienda Socio Sanit Terr Settelaghi, Vasc Surg Unit, Varese, Italy
[4] Poliambulanza Fdn, Vasc Surg Unit, Brescia, Italy
[5] Azienda Sanit Univ Giuliano Isontina, Vasc Surg Unit, Trieste, Italy
[6] Ist Ricovero & Cura Carattere Sci Auxol, Vasc Surg Unit, Milan, Italy
[7] Univ Milan, Dept Clin & Community Sci, Milan, Italy