1. Department of Medical Informatics, Biometry and Epidemiology, University of Bochum, Bochum, Germany
2. Department of Internal Medicine/Vascular Medicine, Affiliated Teaching Hospital, Ruprecht-Karls University of Heidelberg, Karlsbad-Langensteinbach, Germany
3. Medical Clinic I, Klinikum Berlin-Neukölln, Vivantes Netzwerk für Gesundheit, Berlin, Germany
4. Department of Neurology, Municipal Hospital München-Harlaching, Munich, Germany
5. Department of Surgery, Section for Vascular Surgery, Ruprecht-Karls University of Heidelberg, Heidelberg, Germany
6. Department of Clinical Pharmacology, Medical Faculty, Technical University of Dresden, Dresden, Germany
7. 3P Consulting, Pöcking, Germany
8. Medical Department, Sanofi-Synthelabo, Berlin, Germany
9. Practice for Angiology, Munich, Germany