1. Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
2. Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Xiangya Hospital, Central South University, Changsha 410008, China
3. Clinical Research Center for Laryngopharyngeal and Voice Disorders in Hunan Province, Xiangya Hospital, Central South University, Changsha 410008, China
4. Department of Pathology, Xiangya Hospital, Central South University, Changsha 410008, China
5. Department of Pathology, Xiangya Changde Hospital, Changde 415000, China
6. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
7. Department of Pharmacy, Xiangya Hospital, Central South University, Changsha 410008, China