1. Department of Otorhinolaryngology, St. Olavs University Hospital, Trondheim, Norway
2. Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology (NTNU), Faculty of Medicine and Health Sciences (MH), Trondheim, Norway
3. Department of Physical Medicine and Rehabilitation, St. Olavs University Hospital, Trondheim, Norway
4. Department of Otorhinolaryngology, Smell & Taste Clinic, Dresden, Germany
5. Clinic of Radiology and Nuclear Medicine, St. Olavs University Hospital, Trondheim, Norway
6. Department of Neurosurgery, St. Olavs University Hospital, Trondheim, Norway
7. Department of Public Health and Nursing, NTNU, Faculty of MH, Trondheim, Norway