1. University Medical Center Erlangen, Germany
2. German Institute for Vascular Research, Berlin, Germany
3. Department of Vascular and Endovascular Surgery, Asklepios Clinic Wandsbek, Asklepios Medical School, Hamburg, Germany
4. Berlin Institute of Health, Vascular Surgery Clinic, Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany
5. Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
6. Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Germany
7. Department of Vascular and Endovascular Surgery, Medical Faculty, University of Cologne, Germany
8. Department of General, Visceral, Thoracic, Vascular and Transplantation Surgery, Rostock University Medical Center, Germany
9. European Vascular Center Aachen Maastricht, Department of Vascular Surgery University Hospital RWTH Aachen, Germany
10. Division of Vascular and Endovascular Surgery Department for Visceral-, Thoracic and Vascular Surgery Medical Faculty Carl Gustav Carus and University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
11. Department of Vascular and Endovascular Surgery, Goethe University Hospital Frankfurt/Main, Germany
12. Department of Vascular Surgery, Ludwig Maximilians University Hospital, Munich, Germany
13. Department of Vascular and Endovascular Surgery, Bonifatiushospital Lingen, Germany
14. Department of Vascular Surgery, University Hospital Regensburg, Germany
15. Department of Vascular and Endovascular Surgery, Clinic Bergstrasse of University Hospital Heidelberg, Heppenheim, Germany
16. Department of Vascular Medicine, St. Josefs Hospital, Wiesbaden, Germany