1. Department of Public Health and Nursing, Norwegian University of Science and Technology - NTNU, Trondheim, Norway
2. The Cancer Clinic, St Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
3. Faculty of Medicine, University of Bergen, Bergen, Norway
4. Department of Clinical Science, University of Bergen, Bergen, Norway
5. KG Jebsen Centre for Bcell Malignancies, Faculty of Medicine, University of Oslo, Oslo, Norway
6. Faculty of Health Sciences, UiT Arctic University of Norway, Tromsø, Norway
7. Department of Infectious Diseases, Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway