1. Department of Community Medicine and Rehabilitation, Occupational Therapy, Umeå University, Umeå, Sweden
2. Department of Clinical Neuroscience, Umeå University, Umeå, Sweden
3. Unit of Functional Neurosurgery, Sobell Department of Motor Neuroscience and Movement Disorders, UCL Institute of Neurology, Queen Square, London, UK
4. Department of Public Health and Clinical Medicine, Family Medicine, Umeå University, Umeå, Sweden