1. Department of Biochemistry; The University of Hong Kong; Pokfulam; Hong Kong SAR; China
2. Department of Ear, Nose and Throat, The First Affiliated Hospital; Sun Yatsen University; Guangzhou; China
3. Department of Anatomy; The University of Hong Kong; Pokfulam; Hong Kong SAR; China
4. Department of Microbiology; The University of Hong Kong; Pokfulam; Hong Kong SAR; China
5. Department of Microbiology, Zhongshan School of Medicine; Sun Yatsen University; Guangzhou; China