1. Department of Obstetrics and Gynecology Aarhus University Hospital Aarhus Denmark
2. Department of Clinical Medicine Aarhus University Aarhus Denmark
3. Department of Gynecology and Obstetrics, NIDO Center for Research and Education Gødstrup Hospital Herning Denmark
4. Department of Obstetrics and Gynecology Copenhagen University Hospital Amager and Hvidovre Hvidovre Denmark
5. Department of Clinical Medicine University of Copenhagen Copenhagen Denmark