1. Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
2. Department of Otorhinolaryngology, Head and Neck Surgery, Aarhus University Hospital, Aarhus, Denmark
3. Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
4. Department of Oncology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
5. Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
6. Department of Oncology, Aalborg University Hospital, Aalborg, Denmark
7. Department of Oncology, Herlev Hospital, Herlev, Denmark
8. Department of Otorhinolaryngology, Head and Neck Surgery, Odense University Hospital, Odense, Denmark
9. Department of Oncology, Odense University Hospital, Odense, Denmark