1. Department of Vascular and Endovascular Surgery, Marienhospital Gelsenkirchen, Teaching Hospital of Ruhr-University Bochum, Virchowstraße 135, 45886 Gelsenkirchen, Germany
2. Department of Vascular and Endovascular Surgery, University Hospital of Dusseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
3. Department of Vascular and Endovascular Surgery, KLINIKUM Westfalen GmbH, Am Knappschaftskrankenhaus 1, 44309 Dortmund, Germany