1. Department of Gastroenterology The National Key Clinical Specialty, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University Xiamen Fujian Province P.R. China
2. Clinical Research Center for Gut Microbiota and Digestive Diseases of Fujian Province, Xiamen Key Laboratory of Intestinal Microbiome and Human Health Xiamen Fujian Province P.R. China
3. Department of Digestive Disease, Institute for Microbial Ecology, School of Medicine Xiamen University Xiamen Fujian Province P.R. China