1. Department of Neurology The First Affiliated Hospital of Chongqing Medical University Chongqing China
2. Department of Neurology The Fifth People’s Hospital of Chongqing Chongqing China
3. Department of Neurology First Affiliated Hospital of Xi’an Medical University Xi’an China
4. Neuro‐Otology Examination Room of Neurology Department The First Affiliated Hospital of Chongqing Medical University Chongqing China