Work Experience 1999.8-2004.7 Peking University Health Science Center, Clinical Medicine 2004.8-2006.7 Peking University Health Science Center, Office of Education 2006.8-2011.7 Peking University Third Hospital, Surgery 2011.7-Present Peking University Third Hospital, General Surgery Research Activities Principal Investigator, National Health Commission project "Establishment and Application of Prehabilitation Model for Elderly Patients with Colorectal Cancer before Surgery" Principal Investigator, Ministry of Education project "Mental Health Assessment of International Exchange Personnel" Principal Investigator, Peking University Clinical Medicine + X Young Investigator Special Project "Role and Mechanism of the Intestinal ASAH1-Ceramide Axis in the Pathogenesis of Colorectal Cancer"