1. Department of Otorhinolaryngology, LMU Klinikum, Ludwig-Maximilians-Universität München, Munich, Germany
2. German Center for Vertigo and Balance Disorders, LMU Klinikum, Ludwig-Maximilians-Universität München, Munich, Germany
3. Department of Ear, Nose, Throat, Head and Neck Surgery, Asklepios Kliniken Bad Tölz, Bad Tölz, Germany
4. Institute for Medical Information Processing, Biometrics and Epidemiology, Ludwig-Maximilians-Universität München, Munich, Germany