1 Department of Vascular Surgery, Red Cross Hospital, Athens, Greece.
2 Center for Learning and Excellence in Vascular and Endovascular Research (CLEVER), Department of Surgery, Division of Vascular Surgery, University of California San Diego, San Diego, CA, USA.
3 Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.