1. Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University, Copenhagen, Denmark
2. Department of Otorhinolaryngology, Head and Neck Surgery, Rikshospitalet, Oslo University Hospital, Oslo, Norway
3. Department of Pathology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
4. Center for Genomic Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
5. Department of Oncology, Radiumhospitalet, Oslo University Hospital, Oslo, Norway