1. Department of Nephrology and Infectious Diseases, AZ-Sint Jan Brugge, Bruges, Belgium
2. Renal Division, Ghent University Hospital, Ghent, Belgium
3. DaVita Sacavém, Sacavém, Portugal
4. Vascular Surgery Department, Hospital Santa Maria, Lisbon, Portugal
5. Pauls Stradins Clinical University Hospital, Riga, Latvia
6. Department of Vascular Surgery, Queen Elizabeth University Hospital, Glasgow, UK
7. Division of Vascular Surgery, Cardiovascular Institute, Hospital Clinic of Barcelona, Barcelona, Spain
8. Department of Angiology and Vascular Surgery, Bellvitge University Hospital, Barcelona, Spain
9. Centro Hospitalar de Lisboa Central EPE, Lisbon, Portugal
10. Research and Development Centre, Department of Vascular Surgery, General Hospital, Wroclaw, Poland
11. Department of Vascular Surgery, AZ-Sint Jan Brugge, Bruges, Belgium
12. Department of Angiology and Vascular Surgery, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
13. Group of Vascular Studies, Central Hospital of Porto, Porto, Portugal
14. Vascular Unit, Department of Medicine and Surgery, Insubria University and Research Center, Varese, Italy
15. Division of Vascular and Endovascular Surgery, Department of Cardiac, Thoracic, and Vascular Sciences, University of Padua, Padua, Italy
16. Division of Angiology and Vascular Surgery, University Hospital of Ribera, Valencia, Spain
17. Therapis Medical Center, Athens, Greece
18. Department of Renal and Transplant Surgery, Wessex Kidney Centre at Queen Alexandra Hospital, Portsmouth, UK
19. Department of Vascular Surgery, Riuniti Hospitals, Ancona, Italy
20. Department of Thoracic and Vascular Surgery, Ziekenhuis Oost-Limburg, Genk, Belgium
21. Department of Vascular Surgery, University of Patras, Patras, Greece
22. Vascular Access Unit, Department of Vascular and Endovascular Surgery, University Clinic of Cologne, Cologne, Germany
23. Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
24. Department of Experimental, Diagnostic, and Specialty Medicine, Polyclinic SantÓrsola, University of Bologna, Bologna, Italy