[1] Athens Med Ctr, Dept Vasc Surg 3, Athens, Greece
[2] Natl & Kapodistrian Univ Athens, Athens, Greece
[3] Navy Med Univ, Vasc Surg Dept, Affiliated Hosp 1, Shanghai, Peoples R China
[4] Tech Univ Munich, Sch Med, Klinikum Rechts Isar, Munich, Germany
[5] Univ Indonesia, Cipto Mangunkusumo Natl Hosp, Fac Med, Depok, Indonesia
[6] Fed Univ Fluminense, Niteroi, RJ, Brazil
[7] Univ Montreal, Ctr Hosp, Montreal, PQ, Canada
[8] Ctr Hosp Troyes, Troys, France
[9] Hotel Dieu France Hosp, Beirut, Lebanon
[10] Univ Witwatersrand, Johannesburg, South Africa
[11] Univ Med & Pharm, Craiova, Romania
[12] Semmelweis Univ, Budapest, Hungary
[13] Univ Amsterdam, Med Ctr, Amsterdam, Netherlands
[14] Vrije Univ Amsterdam Med Ctr, Amsterdam, Netherlands
[15] Paracelsus Med Univ, Klinikum Nurenberg, Bavaria, Austria
[16] Univ Pittsburgh, Med Ctr, Pittsburgh, PA 15260 USA
[17] Duke Univ, Med Ctr, Durham, NC 27706 USA
[18] Natl Univ Singapore, Singapore, Singapore
[19] Univ Hosp Merkur, Zagreb, Croatia
[20] Pennine Acute Hosp NHS Trust, Oldham, England
[21] Univ Hosp Hairmyres, Glasgow, Lanark, Scotland
[22] North Western Med Univ, St Petersburg, Russia
[23] Hosp Quironsalud Malaga, Malaga, Spain
[24] Poznan Univ Med Sci, Poznan, Poland
[25] Ternopil Univ Clin, Ternopol, Ukraine
[26] Univ Bologna, Bologna, Italy
[27] Shahid Beheshti Univ Med Sci, Tehran, Iran
[28] CHU Titi Ouzou, Titi Ouzou, Algeria
[29] Pirogov City Hosp 1, Moscow, Russia
[30] Hosp Clin Univ Valladolid, Valladolid, Spain
[31] Bedford Hosp NHS Trust, Bedford, England
[32] Univ Republica, Montevideo, Uruguay
[33] Erzincan Binali Yildirim Univ, Erzurum, Turkey