1. Speech and Language Pathology Unit, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
2. Dart - Centre for AAC and Assistive Technology, Sahlgrenska University Hospital, Gothenburg, Sweden
3. Region Västra Götaland, Habilitation & Health, Habilitation Children and youth, Gothenburg, Sweden
4. Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
5. Child Neuropsychiatric Clinic, Sahlgrenska University Hospital, Gothenburg, Sweden
6. Disability Research Division, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
7. Department of Education and Special Education, University of Gothenburg, Sweden
8. Division of Psychology, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden