1. Department of Oto‐Rhino‐LaryngologyLillebaelt Hospital Vejle Denmark
2. Department of Clinical ImmunologyOdense University Hospital Odense Denmark
3. Department of Clinical Immunology and BiochemistryLillebaelt Hospital Vejle Denmark
4. Institute of Regional Health ResearchUniversity of Southern Denmark Denmark
5. Odense Patient data Explorative NetworkOdense University Hospital Odense Denmark
6. Department of NeurobiologyInstitute of Molecular Medicine, University of Southern Denmark Denmark
7. Department of NeurologySlagelse Hospital Slagelse Denmark