1 Department of Surgery and Critical Care, University of Otago, Christchurch, New Zealand; Christchurch Vascular Group, Christchurch, New Zealand; Department of Vascular, Endovascular and Transplant Surgery, Christchurch Public Hospital, Christchurch, New Zealand. Electronic address: [email protected].
2 Department of Neurology, Christchurch Public Hospital, Christchurch, New Zealand; Department of Medicine, University of Otago, Dunedin, New Zealand.