M.D., Chief Physician Has long been engaged in clinical and basic research on gastrointestinal tumors, and has rich surgical experience in radical gastrectomy, extended radical gastrectomy with combined organ resection (including combined pancreaticoduodenectomy, hemihepatectomy, and distal pancreatectomy), and is especially experienced in minimally invasive treatment of gastrointestinal tumors such as totally laparoscopic radical gastrectomy, totally laparoscopic pancreaticoduodenectomy, and laparoscopic radical resection of colorectal cancer; as project leader, has completed 3 projects including those from the Shanghai Municipal Science and Technology Commission; has published more than 50 papers in Chinese Medical Association series journals and core journals.