1. Department of Plastic and Reconstructive Surgery, Skåne University Hospital, Malmö, Sweden
2. Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden
3. Centre for Mathematical Sciences, Mathematical Statistics, Lund University, Lund, Sweden
4. Division of Speech Language Pathology, Department of Otorhinolaryngology, Division of Speech and Language Pathology, Skåne University Hospital, Malmö, Sweden
5. Division of Speech Language Pathology, Phoniatrics and Audiology, Department of Clinical Sciences in Lund, Lund University, Lund, Sweden
6. Division of Speech & Language Pathology, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet, Stockholm, Sweden