1. Department of Otorhinolaryngology—Head and Neck Surgery, Peking Union Medical College Hospital Chinese Academy of Medical Sciences & Peking Union Medical College Beijing China
2. Department of Radiology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing China
3. Department of Anesthesiology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing China