1. Department of Global Public Health and Primary Care University of Bergen Bergen Norway
2. Norwegian National Advisory Unit on Women's Health Oslo University Hospital Rikshospitalet Oslo Norway
3. Department of Medicine Karolinska University Hospital Stockholm Sweden
4. Centre for Fertility and Health Norwegian Institute of Public Health Oslo Norway
5. Division for Mental and Physical Health Norwegian Institute of Public Health Bergen Norway
6. Department of Women's and Children's Health Uppsala University Uppsala Sweden
7. Department of Biomedicine University of Bergen Bergen Norway
8. Department of Clinical Science University of Bergen Bergen Norway
9. Department of Obstetrics and Gynecology Haukeland University Hospital Bergen Norway