1. Vascular Institute Central Switzerland, Aarau, Switzerland
2. Max Grundig Klinik, Bühl/Baden, Germany
3. Department of Urology, Hirslanden Clinic Aarau, Switzerland
4. Department of Internal Medicine, Hirslanden Clinic Aarau, Switzerland
5. Centre of Radiology Baden, Switzerland
6. Department of Cardiovascular Medicine, Marienhospital, Bruehl, Germany