1. Department of Physical Medicine and Rehabilitation, Hafukeland University Hospital, Bergen, Norway
2. Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
3. Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway
4. Department of Neurosurgery, Haukeland University Hospital, Bergen, Norway
5. Mohn Medical Imaging and Visualization Centre, University of Bergen and Haukeland University Hospital, Bergen, Norway
6. Department of Education, the Arctic University of Norway UiT, Tromsø, Norway