1. Division of Angiology, Heart and Vessel Department, Lausanne University Hospital, Switzerland
2. Institute of Cardiovascular Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, Scotland, UK
3. Division of Angiology, Department of Internal Medicine, Medical University, Graz, Austria
4. Clinic of Angiology, Comenius University and National Institute of Cardiovascular Diseases, Bratislava, Slovakia
5. Department of Vascular Medicine, Toulouse University Hospital, France
6. Department of Vascular Medicine, Ospedale Castelfranco Veneto, Italy