1. K. G. Jebsen Thrombosis Research and Expertise Center, Department of Clinical Medicine, UiT–The Arctic University of Norway, Tromsø, Norway;
2. Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway;
3. Faculty of Medicine, University of Oslo, Oslo, Norway; and
4. Research Institute of Internal Medicine and
5. Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital Rikshospitalet, Oslo, Norway