[1] Oslo University Hospital,Department of Obstetrics, Division of Obstetrics and Gynecology, Rikshospitalet
[2] University of Oslo,Institute of Clinical Medicine, Faculty of Medicine
[3] University of Oslo,Institute of Basic Medical Sciences, Faculty of Medicine
[4] Oslo University Hospital,Norwegian Research Centre for Women’s Health, Rikshospitalet
[5] University of Oslo,Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences
[6] Oslo University Hospital,Institute of Cancer Genetics and Informatics, Radiumhospitalet
[7] Oslo University Hospital,Research Institute of Internal Medicine, Rikshospitalet