1. Norwegian National Advisory Unit on Vestibular Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Haukeland University Hospital, Bergen, Norway
2. Department of Health and Functioning, Western Norway University of Applied Sciences, Bergen, Norway
3. Department of Physical Therapy, Haukeland University Hospital, Bergen, Norway
4. Department of Physical Medicine and Rehabilitation, Outpatient Spine Clinic, Haukeland University Hospital, Rådal, Norway
5. Department of Clinical Medicine, University of Bergen, Bergen, Norway