1. Division of Obstetrics and Gynecology Department of Clinical Science, Intervention and Technology (CLINTEC) Karolinska Institutet Stockholm Sweden
2. Department of Women’s Health Karolinska University Hospital Stockholm Sweden
3. Department of Obstetrics and Gynecology Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
4. Women’s Health and Perinatology Research Group Department of Clinical Medicine UiTThe Arctic University of Norway Tromsø Norway