1. Research Unit of Logopedics, University of Oulu, Oulu, Finland
2. Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
3. Department of Speech-Language Pathology, Thomas More University College, Antwerp, Belgium
4. Department of Psychology and Speech-Language Pathology, University of Turku, Turku, Finland
5. Research Unit for Languages and Literature, University of Oulu, Oulu, Finland
6. Research Unit of Clinical Medicine, Child Psychiatry, University of Oulu, Oulu, Finland
7. Child Psychiatry, Oulu University Hospital, Oulu, Finland
8. Research Unit of Clinical Medicine, Psychiatry, Child Psychiatry, University of Oulu, Oulu, Finland