1. Department of Women's and Children's Health Uppsala University Uppsala Sweden
2. Obstetrics and Gynaecology Department of Clinical and Experimental Medicine Faculty of Health Sciences Linköping University Linköping Sweden
3. Department of Gynaecology and Obstetrics in Linköping County Council of Östergötland Linköping Sweden
4. Department of Neurobiology Care Sciences and Society Karolinska Institutet Huddinge Sweden