[1] UCL, Inst Neurol, Natl Hosp Neurol & Neurosurg, Dept Brain Repair & Rehabil, London WC1N 3BG, England
[2] London Sch Hyg & Trop Med, Dept Epidemiol & Populat Hlth, Med Stat Unit, London WC1, England
[3] Univ Med Ctr Utrecht, Rudolf Magnus Inst Neurosci, Dept Neurol, Utrecht, Netherlands
[4] Univ Med Ctr Utrecht, Dept Vasc Surg, Utrecht, Netherlands
[5] Univ Med Ctr Utrecht, Dept Radiol, Utrecht, Netherlands
[6] Sheffield Teaching Hosp NHS Fdn Trust, Sheffield Vasc Inst, Sheffield, S Yorkshire, England
[7] Newcastle Gen Hosp, Dept Neurol, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England
[8] Freeman Rd Hosp, Dept Radiol, Newcastle Upon Tyne, Tyne & Wear, England
[9] Univ Basel, Univ Basel Hosp, Dept Neurol, CH-4003 Basel, Switzerland
[10] Univ Basel, Univ Basel Hosp, Stroke Unit, CH-4003 Basel, Switzerland
[11] Erasmus MC, Dept Vasc Surg, Rotterdam, Netherlands
[12] Univ Manchester, Sch Biomed, Manchester Acad Hlth Sci Ctr, Manchester, Lancs, England
[13] Univ Amsterdam, Acad Med Ctr, Dept Neurol, NL-1012 WX Amsterdam, Netherlands
[14] UCL, Inst Neurol, Cent Off Staff, London WC1N 3BG, England
[15] Australia Austin Hlth, Heidelberg, Germany
[16] Monash Univ, Box Hill Hosp, Melbourne, Vic, Australia
[17] Monash Med Ctr, Clayton, Vic 3168, Australia
[18] Princess Alexandra Hosp, Brisbane, Qld 4102, Australia
[19] Repatriat Gen Hosp, Adelaide, SA, Australia
[20] Royal Melbourne Hosp, Melbourne, Vic, Australia
[21] Royal Hobart Hosp, Hobart, Tas, Australia
[22] Belgium Antwerp Univ Hosp, Antwerp, Belgium
[23] AZ Sint Jan Brugge Oostende, Brugges, Belgium
[24] Clin Univ St Luc, B-1200 Brussels, Belgium
[25] Imelda Ziekenhuis, Bonheiden, Belgium
[26] Canada CHUM Notre Dame Hosp, Montreal, PQ, Canada
[27] Foothills Med Ctr, Calgary, AB, Canada
[28] Finland Helsinki Univ, Cent Hosp, Helsinki, Finland
[29] Germany Otto von Guericke Univ, Magdeburg, Germany
[30] Ireland Beaumont Hosp, Dublin, Ireland
[31] Netherlands Acad Med Ctr, Amsterdam, Netherlands
[32] Haga Teaching Hosp, The Hague, Netherlands
[33] Med Ctr Haaglanden, The Hague, Netherlands
[34] Radboud Univ Nijmegen Med Ctr, Nijmegen, Netherlands
[35] Univ Med Ctr, Utrecht, Netherlands
[36] New Zealand Auckland City Hosp, Auckland, New Zealand
[37] Univ Hosp, Norway Rikshosp, Oslo, Norway
[38] Poland Inst Psychiat & Neurol, Dept Neurol 2, Warsaw, Poland
[39] Poland Inst Psychiat & Neurol, Dept Neuroradiol, Warsaw, Poland
[40] Med Univ Warsaw, Dept Gen Vasc & Oncol Surg 2, Warsaw, Poland
[41] Slovenia Univ, Med Ctr, Ljubljana, Slovenia
[42] Spain Hosp Clin, Barcelona, Spain
[43] Parc Tauli Sabadell Hosp, Barcelona, Spain
[44] Sweden Malmo Univ Hosp, Malmo, Sweden
[45] Soder Sjukhuset, S-10064 Stockholm, Sweden
[46] Karolinska Inst, Stockholm, Sweden
[47] Switzerland Ctr Hosp Univ Vaudois, Lausanne, Switzerland
[48] Univ Basel Hosp, CH-4031 Basel, Switzerland
[49] Univ Hosp Geneva, Geneva, Switzerland
[50] UK Addenbrookes Hosp, Cambridge, England