1. Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
2. Department of Gynecology and Obstetrics Sahlgrenska University Hospital Gothenburg Sweden
3. Department of Obstetrics and Gynecology University of Helsinki, Helsinki University Hospital Helsinki Finland
4. Department of Physiology and Pharmacology Karolinska Institutet Stockholm Sweden
5. Department of Women's and Children's Health Karolinska Institutet Stockholm Sweden
6. Department of Gynecology and Reproductive Medicine Karolinska University Hospital Stockholm Sweden
7. Monash Centre for Health Research & Implementation, Faculty of Medicine, Nursing and Health Sciences Monash University Melbourne Victoria Australia
8. Endocrine and Diabetes Units, Monash Health Melbourne Victoria Australia
9. Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences Norwegian University of Science and Technology Trondheim Norway
10. Department of Obstetrics and Gynecology St Olav's University Hospital Trondheim Norway
11. Department of Obstetrics and Gynecology, Research Unit of Clinical Medicine University of Oulu and Oulu University Hospital Oulu Finland