Institution: | 1. Department of Otorhinolaryngology, The Affiliated YiWu Hospital of Wenzhou Medical University, Zhejiang, People's Republic of China;2. Department of Clinical Medicine, Xinxiang Medical University, Henan, People's Republic of China;3. Department of Pathology, The Affiliated YiWu Hospital of Wenzhou Medical University, Zhejiang, People's Republic of China |