1. Aleris Cancer Center, Oslo, Norway.
2. Department of Oncology, Sykehuset Ostfold Kalnes, Kalnes, Norway.
3. Oslo University Hospital, Center for Biostatistics and Epidemiology, Oslo, Norway.
4. Department of Oncology, Akershus University Hospital, Lorenskog, Norway.
5. Department of Gynecology, Oslo University Hospital, Oslo, Norway.
6. Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway.