1. Department of Otorhinolaryngology, Head and Neck Surgery University of Gothenburg, Sahlgrenska Academy, Institute of Clinical Sciences Gothenburg Sweden
2. Department of Otorhinolaryngology Region Västra Götaland, Södra Älvsborg Hospital Borås Sweden
3. Department of Research, Education and Innovation Region Västra Götaland, Södra Älvsborg Hospital Borås Sweden
4. Institute of Neuroscience and Physiology, Speech and Language Pathology Unit University of Gothenburg, Sahlgrenska Academy Gothenburg Sweden
5. Department of Otorhinolaryngology, Head and Neck Surgery Region Västra Götaland, Sahlgrenska University Hospital Gothenburg Sweden