[1] Aberdeen Royal Infirm, Aberdeen, Scotland
[2] Aneurin Bevan Univ Hlth Board, Cardiff, Wales
[3] Cambridge Univ Hosp, Cambridge, England
[4] Freeman Rd Hosp, Newcastle Upon Tyne, England
[5] Gloucester Royal Hosp, Gloucester, England
[6] Hosp Sao Paulo, Sao Paulo, Brazil
[7] Hull Royal Infirm, Kingston Upon Hull, N Humberside, England
[8] Imperial Coll Healthcare NHS Trust, London, England
[9] James Cook Univ Hosp, Middlesbrough, Cleveland, England
[10] King Saud Med Ctr, Riyadh, Saudi Arabia
[11] Leeds Teaching Hosp NHS Trust, Leeds, W Yorkshire, England
[12] Leicester Vasc Inst, Leicester, Leics, England
[13] London Northwest Univ Healthcare NHS Trust, London, England
[14] Manchester Univ Fdn Trust, Manchester, Lancs, England
[15] Mid & South Essex NHS Trust, Basildon, England
[16] Christchurch Hosp, Christchurch, New Zealand
[17] Waikato Hosp, Hamilton, New Zealand
[18] Ninewells Hosp, Dundee, Scotland
[19] Norfolk & Norwich Univ Hosp NHS Fdn Trust, Kings Lynn, England
[20] Oxford Univ Hosp NHS Trust, Oxford, England
[21] Queen Elizabeth Univ Hosp, Glasgow, Lanark, Scotland
[22] Royal Adelaide Hosp, Adelaide, SA, Australia
[23] Royal Devon & Exeter Hosp, Exeter, Devon, England
[24] Royal Infirm Edinburgh NHS Trust, Edinburgh, Midlothian, Scotland
[25] Sapienza Univ Rome, Policlin Umberto 1, Rome, Italy
[26] Shrewsbury & Telford Hosp NHS Trust, Shrewsbury, Salop, England
[27] Univ Hosp North Midlands, Stoke On Trent, Staffs, England
[28] Univ Hosp Patras, Pio, Greece
[29] Univ Hosp Trieste, Trieste, Italy
[30] Univ Hosp Southampton NHS Fdn Trust, Southampton, Hants, England
[31] Hippocratio Hosp, Thessaloniki, Greece
[32] Worcestershire Acute Hosp NHS Trust, Worcester, England
[33] Vasc & Endovasc Res Network Execut Comm, Cardiff, Wales