1 Department of Vascular Surgery, St. Olavs Hospital, Trondheim, Norway; Institute for Circulation and Medical Imaging, NTNU, Trondheim, Norway. Electronic address: Martin.altreuther@stolav.no.
2 Department of Surgery, Vascular Unit, Mater Dei Hospital, Malta; Faculty of Medicine and Surgery, University of Malta, Malta; Section of Vascular Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
3 Department of Vascular Surgery, Kantonsspital Winterthur, Switzerland; Head Swissvasc Registry, Registry of the Swiss Society of Vascular Surgery.