1. Department of Vascular Surgery; University of Patras Medical School; Patras Greece
2. NorthShore University HealthSystem; Evanston Illinois USA
3. Pritzker School of Medicine; Chicago Illinois USA
4. Department of Surgery and Cancer; Imperial College of Science Technology and Medicine; London UK
5. Department of Vascular Surgery, Attikon University Hospital; National and Kapodistrian University; Athens Greece
6. Department of Surgery; University of Nicosia Medical School; Nicosia Cyprus
7. Northern Vascular Centre; Freeman Hospital; Newcastle UK
8. Department of Surgery; Wayne State University; Detroit Michigan USA