[1] Pennine Acute Hosp NHS Trust, Northern Care Alliance NHS Grp, Royal Oldham Hosp, Dept Vasc & Endovasc Surg, Manchester, Lancs, England
[2] Univ Manchester, Sch Med Sci, Div Cardiovasc Sci, Manchester, Lancs, England
[3] Mediterranean Hosp Cyprus, Dept Surg, Limassol, Cyprus
[4] European Univ Cyprus, Sch Med, Nicosia, Cyprus
[5] Liverpool Vasc & Endovasc Serv, Liverpool, Merseyside, England
[6] Univ Liverpool, Sch Phys Sci, Liverpool, Merseyside, England
[7] Liverpool Cardiovasc Serv, Liverpool, Merseyside, England