1. Department of Vascular Surgery, St Antonius Hospital, Nieuwegein, The Netherlands
2. Department of Interventional Radiology, St. Antonius Hospital, Nieuwegein, The Netherlands
3. Maasstad Hospital, Rotterdam, The Netherlands
4. Rijnstate Hospital, Arnhem, The Netherlands
5. Free University Medical Centre, Amsterdam, The Netherlands
6. Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands