Affiliation: | 1. Department of Otolaryngology, Taichung Veterans General Hospital, Taichung, Taiwan;2. Faculty of Medicine, School of Medicine, National Yang‐Ming University, Taipei, Taiwan;3. Department of Oral and Maxillofacial Surgery, Taichung Veterans General Hospital, Taichung, Taiwan;4. Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan |