1. Department of Otorhinolaryngology; Head and Neck Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital; Gothenburg Sweden
2. Department of Molecular and Clinical Medicine/Multidisciplinary Pain Centre; Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital; Gothenburg Sweden
3. Department of Oncology; Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital; Gothenburg Sweden
4. Department of Oral and Maxillofacial Surgery; Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital; Gothenburg Sweden