1. Department of Biomedical Engineering National Yang Ming Chiao Tung University Taipei Taiwan
2. Department of Otolaryngology Far Eastern Memorial Hospital Taipei Taiwan
3. Department of Otolaryngology National Taiwan University Hospital Taipei Taiwan
4. Graduate Institute of Medicine Yuan Ze University Taoyuan Taiwan
5. Department of Electrical Engineering Yuan Ze University Taoyuan Taiwan
6. Medical Engineering Office Far Eastern Memorial Hospital Taipei Taiwan
7. Department of Communication Engineering Asia Eastern University of Science and Technology Taipei Taiwan