1. Dart Center for Augmentative and Alternative Communication and Assistive Technology, Sahlgrenska University Hospital, Gothenburg, Sweden
2. Speech and Language Pathology Unit, Institute of Neuroscience and Physiology at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
3. Institute of Health and Care Sciences at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden