1. Department of Neuromedicine and Movement Science NTNU Norwegian University of Science and Technology Trondheim Norway
2. Norwegian Advisory Unit on Headaches, Department of Neurology St. Olavs Hospital Trondheim Norway
3. Department of Clinical Neuroscience for Children Oslo University Hospital Oslo Norway
4. Department of Psychology NTNU Norwegian University of Science and Technology Trondheim Norway
5. Department of Physical Medicine and Rehabilitation St. Olavs Hospital Trondheim Norway
6. Department of Neurology Oslo University Hospital Oslo Norway