1. Department of Rehabilitation; Donders Centre for Neuroscience; Radboud University Medical Centre; Nijmegen The Netherlands
2. Department of Neurology; Donders Centre for Neuroscience; Radboud University Medical Centre; Nijmegen The Netherlands
3. Department of Rehabilitation; Rehabilitation Centre Sint Maartenskliniek; Nijmegen The Netherlands
4. Department of Health Evidence; Radboud University Medical Centre; Nijmegen The Netherlands
5. Department of Otorhinolaryngology; Radboud University Medical Centre; Nijmegen the Netherlands