1 Microbiota I-Center (MagIC), Hong Kong SAR, People's Republic of China.
2 Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China.
3 Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China.
4 Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China.
5 Microbiota I-Center (MagIC), Hong Kong SAR, People's Republic of China siewchienng@cuhk.edu.hk.