1. Faculty of Medicine and Health Sciences, Department of Biomedical and Clinical Sciences, Division of Sensory Organs and Communication Linköping University Linköping Sweden
2. Department of Otorhinolaryngology in Linköping, Anaesthetics, Operations and Specialty Surgery Center Region Östergötland Linköping Sweden
3. Department of Surgical Sciences Uppsala University Uppsala Sweden
4. Department of Otorhinolaryngology—Head and Neck Surgery, Research Program in Systems Oncology University of Helsinki and Helsinki University Hospital Helsinki Finland
5. Division of Ear, Nose and Throat Diseases, Department of Clinical Sciences, Intervention and Technology Karolinska Institute and Karolinska Hospital Stockholm Sweden