1. Department of Occupational Therapy, Physiotherapy and Radiography, Western Norway University of Applied Sciences, Campus Kronstad, Bergen, Norway
2. Department of Clinical Sciences, Division of Psychiatry, Umeå University, Umeå, Sweden
3. Department of Nursing, Physiotherapy and Medicine, University of Almeria, Almeria, Spain
4. Faculty of Humanities, Communication and Documentation, University Carlos III of Madrid, Madrid, Spain
5. Physiotherapy Department, Royal Edinburgh Hospital, Edinburgh, UK
6. Department of Health Sciences, Luleå University of Technology, Luleå, Sweden
7. Department of Health Sciences, Lund University, Lund, Sweden