1. Center for Clinical Research; North Denmark Regional Hospital; Hjørring Denmark
2. Department of Clinical Medicine; Aalborg University; Aalborg Denmark
3. Department of Obstetrics and Gynecology; Aarhus University Hospital; Aarhus Denmark
4. Department of Obstetrics and Gynecology; North Denmark Regional Hospital; Hjørring Denmark
5. Department of Obstetrics and Gynecology; Aalborg University Hospital; Aalborg Denmark
6. Department of Obstetrics and Gynecology; Odense University Hospital; Odense Denmark
7. Department of Hematology; Aalborg University Hospital; Aalborg Denmark