1. Department of Otorhinolaryngology, Head & Neck Surgery, University of Groningen, University Medical Centre Groningen, 9712 CP Groningen, The Netherlands
2. Fysiotherapie Sittard Oost, 6137 RX Sittard, The Netherlands
3. Graduate School of Medical Sciences, Research School of Behavioural and Cognitive Neurosciences, University of Groningen, 9712 CP Groningen, The Netherlands
4. Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
5. Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Centre Groningen, 9712 CP Groningen, The Netherlands
6. Department of Rehabilitation Medicine, University of Groningen, University Medical Centre Groningen, 9712 CP Groningen, The Netherlands