Affiliation: | 1. Department of Otorhinolaryngology–Head and Neck Surgery, United Christian Hospital and Tseung Kwan O Hospital, Hong Kong;2. Department of Medicine and Geriatrics, United Christian Hospital, Hong Kong;3. Department of Pathology, United Christian Hospital, Hong Kong;4. Department of Pathology, Tseung Kwan O Hospital, Hong Kong;5. Department of Medicine, Tseung Kwan O Hospital, Hong Kong;6. Department of Otorhinolaryngology–Head and Neck Surgery, The Chinese University of Hong Kong, Hong Kong |