1. Department of Otorhinolaryngology and Head & Neck Surgery, European Institute for ORL-HNS, GZA Sint-Augustinus, Wilrijk, Belgium
2. Department of Speech, Language and Hearing Sciences, Faculty of Medicine and Health Sciences, University of Ghent, Belgium
3. Faculty of Education, Health & Social Work, University College Ghent, Belgium
4. Faculty of Psychology and Educational Sciences, School of Logopedics, Louvain-La-Neuve, Belgium
5. Phonanium, Lokeren, Belgium
6. Division of Otolaryngology and Head & Neck Surgery, University of Utah, Salt Lake City