1. Department of Pathology; Radboud University Medical Center; Nijmegen The Netherlands
2. Center for Cancer Biomarkers; Department of Clinical Science; University of Bergen; Bergen Norway
3. Department of Gynecology and Obstetrics; Haukeland University Hospital; Bergen Norway
4. Department of Obstetrics and Gynecology; Radboud University Medical Center; Nijmegen The Netherlands
5. Department of Clinical medicine; Section for Pathology; Haukeland University Hospital; Bergen Norway
6. Center for Cancer Biomarkers; Department of Clinical Medicine; Section for Pathology; University of Bergen; Bergen Norway