1. Cancer Registry of Norway, Oslo, Norway;
2. Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway;
3. Faculty of Health Sciences, Department of Life Sciences and Health, Oslo Metropolitan University, Oslo, Norway;
4. Centre for Cancer Biomarkers CCBIO, Department of Clinical Medicine, University of Bergen, Bergen, Norway;
5. Department of Pathology, Haukeland University Hospital, Bergen, Norway;
6. Department of Radiology, Aalesund Hospital, Aalesund, Norway;
7. Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway;
8. Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, University of Oslo, Oslo, Norway