1. Department of Clinical Sciences in Lund, Lund University, Lund, Sweden
2. Department of Otorhinolaryngology, Division of Speech and Language Pathology, Skåne University Hospital, Malmö, Sweden
3. Medical Unit Speech Therapy and Stockholm Craniofacial Team, Karolinska University Hospital, Stockholm, Sweden
4. Department of Otorhinolaryngology, Division of Speech and Language Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
5. Speech and Language Therapy Unit, Linköping University Hospital, Linköping, Sweden
6. Department of Speech-Language Pathology, Uppsala University Hospital, Uppsala, Sweden
7. Department of Clinical Sciences/Speech and Language Pathology, Umeå University, Umeå, Sweden