Associate Chief Physician. He has long been engaged in the diagnosis and treatment of digestive system diseases.He specializes in acute and chronic liver diseases, inflammatory bowel disease, biliary and pancreatic diseases, functional gastrointestinal disorders, irritable bowel syndrome, chronic constipation, etc.He initiated and is in charge of the specialized clinic for intestinal microecological therapy, and excels at diagnosing and treating diseases related to intestinal flora and functional disorders using microecological therapies such as intestinal microbiota transplantation.He has presided over multiple research projects including the National Natural Science Foundation of China, and participated in several domestic and international multicenter clinical studies. As the first or corresponding author, he has published more than 20 SCI papers on clinical research, obtained 1 authorized domestic invention patent, and co‑compiled the monograph *Practical Internal Medicine*. He has been awarded the Second‑class Prize of Shanghai Science and Technology Progress Award and the Third‑class Prize of Shanghai Medical Science and Technology Award.