1. Department of Mechanical Engineering, University of Hong Kong, Hong Kong, China.
2. Faculty of Dentistry, University of Hong Kong, Hong Kong, China.
3. Department of Otorhinolaryngology, Head and Neck Surgery, Chinese University of Hong Kong, Hong Kong, China.
4. Department of Diagnostic Radiology, University of Hong Kong, Hong Kong, China.
5. Department of Biomedical Engineering, Chinese University of Hong Kong, Hong Kong, China.
6. Department of Surgery, Chinese University of Hong Kong, Hong Kong, China.
7. Department of Mechanical and Automation Engineering, Chinese University of Hong Kong, Hong Kong, China.
8. Division of Head and Neck Surgery, Stanford University, Stanford, CA, USA.