1. Department of Vascular and Endovascular Surgery, DRK Hospital Berlin Köpenick, Berlin, Germany
2. Department of Vascular and Endovascular Surgery, Krankenhaus Nordwest Frankfurt, Germany
3. Department of Cardiac and Transplant Surgery, Royal Brompton and Harefield NHS Trust, Harefield, UK
4. Department of Vascular and Endovascular Surgery, Asklepios Hospital Bad Tölz, Germany
5. Department of Vascular, Thoracic and Cardiovascular Surgery, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Germany