1. St George’s Vascular Institute, St George’s NHS Trust Hospital, London, UK
2. Department of Vascular Surgery, St Elisabeth Hospital, Tilburg, the Netherlands
3. Department of Vascular Surgery, Addenbrookes Hospital, Cambridge, UK
4. Department of Surgery, Rijnstate Hospital, Arnhem, the Netherlands
5. Department of Vascular and Endovascular Surgery, Ruprecht-Karls University Heidelberg, Germany
6. Department of Vascular and Endovascular Surgery, University of Düsseldorf, Germany
7. Department of Vascular Surgery, St Antonius Hospital, Nieuwegein, the Netherlands
8. Department of Vascular Surgery, Stradins University Hospital, Riga, Latvia
9. Department of Interventional Radiology, Auckland Hospital, Auckland, New Zealand