1. Department of Otorhinolaryngology Head & Neck Surgery and Audiology; Rigshospitalet; Copenhagen University Hospital; Copenhagen Denmark
2. Department of Otorhinolaryngology and Maxillofacial Surgery; Zealand University Hospital; Køge Denmark
3. Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen Denmark
4. Department of Pathology; Rigshospitalet; Copenhagen University Hospital; Copenhagen Denmark
5. Department of Ophthalmology; Rigshospitalet-Glostrup; Copenhagen University Hospital; Copenhagen Denmark