1 Liverpool Vascular and Endovascular Service, Liverpool, UK; School of Physical Sciences, University of Liverpool, Liverpool, UK; Liverpool Centre for Cardiovascular Science, Liverpool, UK. Electronic address: f.torella@liverpool.ac.uk.
2 Department of Surgery, Mediterranean Hospital of Cyprus, Limassol, Cyprus; School of Medicine, European University Cyprus, Nicosia, Cyprus.
3 Department of Vascular and Endovascular Surgery, The Royal Oldham Hospital, Pennine Acute Hospitals NHS Trust, Northern Care Alliance NHS Group, Manchester, UK; Division of Cardiovascular Science, School of Medical Sciences, The University of Manchester, Manchester, UK.