1. Department of Vascular Surgery, Aker University Hospital
2. Department of Vascular Diagnosis and Research, Aker University Hospital
3. Department of Radiology, Oslo Vascular Centre, Aker University Hospital
4. Department of Immunology, Rikshospitalet-Radiumhospitalet Medical Centre, Faculty of Medicine, University of Oslo, Oslo, Norway
5. Department of Anaesthesiology, Aker University Hospital