1. Department of Health and Care Sciences, Faculty of Health Sciences; University of Tromsø; 9037 Tromsø Norway
2. Department of Physiotherapy; Nordland Hospital Trust; 8092 Bodø Norway
3. Department of Research; Nordland Hospital Trust; 8092 Bodø Norway
4. Department of Clinical Medicine; Faculty of Health Sciences, University of Tromsø; 9037 Tromsø Norway
5. Department of Neurology; Nordland Hospital Trust; 8092 Bodø Norway