[1] Cleveland Clin Abu Dhabi, Inst Heart & Vasc, Abu Dhabi, U Arab Emirates
[2] Virginia Commonwealth Univ, Pauley Heart Ctr, Med Coll Virginia, Richmond, VA 23298 USA
[3] Univ London Imperial Coll Sci Technol & Med, St Marys Hosp, Div Surg, Reg Vasc Unit, London W2 1NY, England
[4] Cleveland Clin, Inst Heart & Vasc, Cleveland, OH 44195 USA
[5] Na Homolce Hosp, Dept Vasc Surg, Prague 15030 5, Czech Republic