1. Department of Otolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
2. Yantai Yuhuangding Hospital, Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai, China
3. Yantai Yuhuangding Hospital, Yantai Key Laboratory of Otorhinolaryngologic Diseases, Yantai, China