1. Department of Obstetrics and Gynaecology; University Hospital North Norway; Tromsø Norway
2. Immunology Research Group; Department of Medical Biology; The Artic University of Norway; Tromsø Norway
3. Department of Laboratory Medicine; University Hospital North Norway; Tromsø Norway
4. Clinical Immunology and Transfusion Medicine; University and Regional Laboratories Region Skåne; Lund Sweden