[1] Univ Med Ctr Utrecht, Dept Vasc Surg, Utrecht, Netherlands
[2] Univ London Imperial Coll Sci Technol & Med, London, England
[3] Univ Innsbruck Hosp, Innsbruck, Austria
[4] Azienda Osped Perugia, Perugia, Italy
[5] CHRU Lille, Hop Cardiol, Lille, France
[6] St Thomas Hosp, London, England
[7] St Georges Vasc Inst, London, England
[8] Yale Univ, Sch Med, New Haven, CT USA
[9] Univ Siena, I-53100 Siena, Italy
[10] Univ Poitiers, Poitiers, France