1. Division of Otorhinolaryngology, Department of Clinical Science, Intervention and Technology, (CLINTEC), Karolinska Institutet, Stockholm, Sweden;
2. Department of Special Needs Education, University of Oslo, Oslo, Norway;
3. Habilitation and Health, Stockholm County Council, Stockholm, Sweden;
4. Haninge Rehab, Stockholm County Council, Stockholm, Sweden;
5. Södermanland County Council, Nyköping, Sweden;
6. Stocksunds RE/Speech and Language, Danderyd, Sweden;
7. Division of Speech and Language Pathology, Department of Clinical Science, Intervention and Technology, (CLINTEC), Karolinska Institutet, Stockholm, Sweden