1. Department of Women´s and Children´s Health, Division of Obstetrics and Gynaecology, Karolinska University Hospital/Institutet, Stockholm, Sweden;
2. Regional Cancer Centre, Uppsala University Hospital, Uppsala, Sweden;
3. Department of Laboratory Medicine, Division of Pathology, Karolinska University Hospital/Institutet, Stockholm, Sweden;
4. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden;
5. Department of Clinical Science and Education, Division of Obstetrics and Gynaecology, Karolinska Institutet Södersjukhuset, Stockholm, Sweden