1. Department of Research Development and Education, Sint Maartenskliniek, Nijmegen, The Netherlands.
2. Department of Language and Speech, Faculty of Arts, Radboud University Nijmegen, Nijmegen, The Netherlands.
3. University Centre for Information Services Nijmegen, Nijmegen, The Netherlands.
4. Department of Language and Speech, Faculty of Arts, Centre for Language and Speech Technology, Radboud University Nijmegen, Nijmegen, The Netherlands.
5. Department of Rehabilitation, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.