1. Department of Cardiac and Vascular Surgery, University Medical Center, Johannes Gutenberg-University, 55131 Mainz, Germany
2. Department of Vascular Medicine, Helios Dr. Horst Schmidt Hospital (Teaching Hospital of Johannes Gutenberg-University, Mainz), 65199 Wiesbaden, Germany
3. Vascular Surgery, University Hospital Son Espases, 07120 Palma de Mallorca, Spain
4. Department of Vascular Medicine, Westpfalz-Klinikum II Kusel (Teaching Hospital of Johannes Gutenberg-University School of Medicine), 66869 Kusel, Germany