1. Department of Otorhinolaryngology, Head and Neck Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
2. Department of Medical Oncology, Heilongjiang Province Hospital, Harbin 150001, China
3. Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
4. Department of Otorhinolaryngology, Head and Neck Surgery, The Fourth Hospital of Harbin, Harbin 150070, China