1. Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
2. Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
3. Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan
4. Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
5. Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
6. Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan