1. Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, School of Life Sciences and Technology, Tongji University, Shanghai, P. R. China
2. National Clinical Research Center for Child Health, the Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, P. R. China
3. Departments of Gastroenterology and Nutrition, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, P.R. China
4. Center for IBD Research, Department of Gastroenterology, the Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, P. R. China
5. Guangdong Institute of Gastroenterology; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases; Biomedical Innovation Center, Sun Yat-Sen University, Guangzhou, P. R. China
6. Department of General Surgery, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, P. R. China