1. Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University, Baltimore, USA
2. Department of Otolaryngology-Head and Neck Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
3. Lab for Equilibrium Investigations and Aerospace, University of Antwerp, Antwerp, Belgium
4. Department of Otorhinolaryngology-Head and Neck Surgery, University Medicine Mannheim, University of Heidelberg, Germany
5. Department of Otorhinolaryngology, Lund University, Lund, Sweden
6. Department of Geriatric Medicine and Gerontology, Johns Hopkins University, Baltimore, USA
7. Dizziness and Balance Disorders Centre, Adelaide, Australia
8. Department of Neurology and German Center for Vertigo, Ludwig Maximilians University, Munich, Germany