1. HUB Center for Venous and Lymphatics Disorders of the Emilia Romagna Region, S. Anna University Hospital, Ferrara, Italy
2. Unit of Interventional Radiology, S. Anna University Hospital, Ferrara, Italy
3. IRCCS of the Neurosciences, Bellaria Hospital, Bologna, Italy
4. Unit of Vascular Surgery and Transplantation, University of Catania, Italy
5. Unit of Vascular Surgery, University of Siena, Siena, Italy
6. Unit of Radiology, Macerata Hospital, ASUR Marche, Italy
7. Unit of Interventional Radiology, Ospedale Maggiore, Novara, Italy
8. Department of Radiology, New York State University in Brooklyn, New York, USA
9. Department of Biomedical and Neuromotor Sciences, University of Bologna Center for Clinical Epidemiology, School of Medicine, University of Ferrara, Italy