[1] Univ Munich, Univ Hosp Munich, Inst Clin Neurosci, D-81377 Munich, Germany
[2] Univ Munich, Univ Hosp Munich, German Ctr Vertigo & Balance Disorders, D-81377 Munich, Germany
[3] Univ Munich, Univ Hosp Munich, Dept Neurol, D-81377 Munich, Germany
[4] SyNergy, Munich Cluster Syst Neurol, Munich, Germany