1. Department of Laboratory MedicineUniversity Hospital of North Norway Tromsø Norway
2. Department of Community Medicine, Faculty of Health SciencesUiT The Arctic University of Norway Tromsø Norway
3. Department of Clinical ScienceUniversity of Bergen, Norway
4. Laboratory of Immunology and Transfusion MedicineHaugesund Hospital Haugesund Norway
5. Finnmark Hospital Trust Kirkenes Norway
6. Department of Immunology and Transfusion MedicineHaukeland University Hospital Bergen Norway
7. Department of Medical Biochemistry and PharmacologyHaukeland University Hospital Bergen Norway