1. Cochlear Bone Anchored Solutions AB Mölnlycke Sweden
2. Bundang Hospital Seoul National University Seongnam South Korea
3. Caldas Hospital SES, Manizales Caldas Colombia
4. Hunter ENT New Lambton Heights Australia
5. ENT Department Sheffield Teaching Hospitals Sheffield UK
6. All India Institute of Medical Sciences New Delhi India
7. Department of Otorhinolaryngology, Donders Center for Neurosciences Radboud University Medical Center Nijmegen Netherlands
8. Department of Otorhinolaryngology/Head and Neck Surgery, University Medical Center Groningen University of Groningen Groningen Netherlands
9. Research School of Behavioral and Cognitive Neurosciences, Graduate School of Medical Sciences University of Groningen Groningen Netherlands