1. Department of Oncology, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway
2. Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
3. Department of Neuroradiology, Oslo University Hospital, Oslo, Norway
4. Department of Cancer Research and Clinical Research, Norwegian University of Science and Technology, Trondheim, Norway
5. Department of Research, Cancer Registry of Norway, Oslo, Norway
6. Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway