1. Department of Otorhinolaryngology, Department of Otolaryngology, Bengbu Third People's Hospital Affiliated to Bengbu Medical College, Bengbu, China;
2. Department of General Medicine, Bengbu Third People's Hospital Affiliated to Bengbu Medical College, Bengbu, China;
3. Department of Otorhinolaryngology, Head and Neck Surgery and Vertigo Center, Chinese PLA General Hospital, Beijing, China