1. Department of Otolaryngology—Head & Neck Surgery, Taichung Veterans General Hospital, Taiwan
2. School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
3. Department of Speech Language Pathology and Audiology, Chung Shan Medical University, Taichung, Taiwan
4. Department of Audiology and Speech-Language Pathology, Asia University, Taichung, Taiwan
5. Speech and Language Therapy Room, Chung Shan Medical University Hospital, Taichung, Taiwan