1. Department of Otorhinolaryngology, Head & Neck Surgery, Faculty of Medicine, The Chinese University of Hong Kong, New Territories, Hong Kong SAR, China
2. Institute of Human Communicative Research, The Chinese University of Hong Kong, New Territories, Hong Kong SAR, China
3. Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China