Chief Physician, Professor, and Master's Supervisor. Dr. Xu graduated from Peking Union Medical College in 2002 with a doctoral degree. She served as a resident and attending physician at Peking Union Medical College Hospital, and currently serves as a professor and chief physician in Liver Surgery. She has been engaged in clinical work of hepatobiliary surgery for a long time, specializing in the diagnosis and treatment of benign and malignant tumors of the hepatobiliary system, intra- and extrahepatic bile duct stones, and other diseases. She has rich clinical experience in the diagnosis and treatment of difficult and severe surgical diseases of the hepatobiliary system. She has published multiple articles in domestic and foreign journals, including 6 SCI papers as the corresponding or first author.