1. Department of Otorhinolaryngology, Antwerp University Hospital, Faculty of Medicine and Health Sciences, University of Antwerp, Belgium
2. Department of Otorhinolaryngology and Head and Neck Surgery, Charles University, 1st Medical Faculty, University Hospital Motol, Prague, Czech Republic
3. Department of Otorhinolaryngology, Charles University, 3rd Medical Faculty, University Hospital Královské Vinohrady, Prague, Czech Republic
4. Ear and Skull Base Institute, Clairval Hospital, Ramsay Health Care, Marseille, France
5. Gruppo Otologico, Piacenza, Italy
6. Department of Otorhinolaryngology, Pavol Jozef Šafárik University, Košice, Slovakia
7. Department of Otolaryngology, Medical University of Gdansk, Gdansk, Poland
8. Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University Hospital, Würzburg, Germany
9. Department of Neurology and German Center for Vertigo and Balance Disorders, Ludwig Maximilians University Hospital, Munich, Germany
10. Auris Medical AG, Basel, Switzerland