1. Department of Otolaryngology Head and Neck Surgery, Far Eastern Memorial Hospital , New Taipei City 220 , Taiwan (R.O.C.)
2. Head and Neck Cancer Surveillance and Research Study Group, Far Eastern Memorial Hospital , New Taipei City , Taiwan (R.O.C.)
3. Department of Communication Engineering, Asia Eastern University of Science and Technology , New Taipei City , Taiwan (R.O.C.)
4. Department of Biomedical Engineering, National Yang-Ming University , Taipei , Taiwan (R.O.C.)
5. Department of Electrical Engineering, Yuan Ze University , Taoyuan , Taiwan (R.O.C.)
6. Medical Engineering Office, Far Eastern Memorial Hospital , New Taipei City , Taiwan (R.O.C.)
7. Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital , Taipei , Taiwan
8. Department of Medicine, School of Medicine, National Yang-Ming University , Taipei , Taiwan (R.O.C.)
9. Department of Otolaryngology Head and Neck Surgery, Far Eastern Memorial Hospital , No. 21, Sec. 2, Nanya S. Rd., Banqiao Dist. , New Taipei City 220 , Taiwan (R.O.C.)
10. Graduate Institute of Medicine, Yuan Ze University , Taoyuan , Taiwan (R.O.C.)