1. Department of Otorhinolaryngology, Head and Neck Surgery and Audiology Odense University Hospital Odense Denmark
2. Department of Clinical Research University of Southern Denmark Odense Denmark
3. OPEN ‐ Open Patient data Explorative Network Odense University Hospital Odense Denmark
4. Department of Experimental Clinical Oncology Aarhus University Hospital Aarhus Denmark
5. Department of Pathology Odense University Hospital Odense Denmark
6. Department of Pathology Rigshospitalet Copenhagen Denmark
7. Department of Pathology Aarhus University Hospital Aarhus Denmark
8. Department of Otorhinolaryngology, Head and Neck Surgery Rigshospitalet Copenhagen Denmark
9. Department of Otorhinolaryngology, Head and Neck Surgery Aarhus University Hospital Aarhus Denmark
10. Department of Otorhinolaryngology, Head and Neck Surgery Aalborg University Hospital Aalborg Denmark
11. Department of Oncology Odense University Hospital Odense Denmark
12. Department of Oncology Rigshospitalet Copenhagen Denmark
13. Department of Oncology Herlev Hospital Herlev Denmark
14. Department of Oncology Aalborg University Hospital Aalborg Denmark