1. Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
2. Department of Blood Purification, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
3. Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, Yantai, Shandong 264003, P.R. China