1. Department of Biomedical Sciences, Department of Infectious Diseases and Public Health, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, P. R. China
2. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong Province, P. R. China
3. Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518075, P. R. China