1. Women's Health and Perinatology Research Group; Department of Clinical Medicine; Faculty of Health Sciences UiT - The Arctic University of Norway; Tromsø Norway
2. Department of Obstetrics and Gynecology; University Hospital of North Norway; Tromsø Norway
3. Institute of Clinical Medicine; University of Oslo; Oslo Norway
4. Department of Obstetrics; Fetal Medicine; Oslo University Hospital - Rikshospitalet; Oslo Norway
5. Department of Pathology; University Hospital of North Norway; Tromsø Norway
6. Translational Cancer Research Group; Department of Clinical Medicine; Faculty of Health Sciences UiT - The Arctic University of Norway; Tromsø Norway
7. Department of Clinical Sciences, Intervention and Technology; Karolinska Institute; Stockholm Sweden