1 Department of Biomedical and Preclinical Sciences, University Hospital (CHU, ULg) of Liège, Liège, Belgium. Electronic address: philippe.kolh@chuliege.be.
2 Department of Vascular Surgery, Canton Hospital St. Gallen, St. Gallen, Switzerland; University of Bern, Bern, Switzerland.
3 Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK.