1. Department of Angiology, Heart-Centre Bad Krozingen, Germany
2. Department of Angiology, Heart Centre & Park Clinic, Leipzig, Germany
3. Cardiovascular University Centre, Hamburg, Germany
4. Department of Radiology, Red Cross Clinics Berlin, Germany
5. Cardio-vascular Centre Department, CardioVascular Center Clinic, Frankfurt, Germany
6. Department of Angiology, University Hospital Wien, Austria
7. Department of Vascular and Endovascular Surgery, AZ Sint-Blasius Dendermonde, Belgium
8. Department of Vascular and Endovascular Surgery, Imelda Cardiovascular Center, Bonheiden, Belgium
9. Department of Radiology, University Hospital Frankfurt, Germany