Affiliation: | 1. Department of Otorhinolaryngology, Seoul National University College of Medicine, Bundang Hospital, Gyeonggi‐Do, Seoul, Korea;2. Department of Internal Medicine, Seoul National University College of Medicine, Bundang Hospital, Gyeonggi‐Do, Seoul, Korea;3. Department of Surgery, Seoul National University College of Medicine, Bundang Hospital, Gyeonggi‐Do, Seoul, Korea;4. Department of Radiology, Seoul National University College of Medicine, Bundang Hospital, Gyeonggi‐Do, Seoul, Korea;5. Department of Pathology, Seoul National University College of Medicine, Bundang Hospital, Gyeonggi‐Do, Seoul, Korea |