Director of the Gynecologic Oncology Center at Peking Union Medical College Hospital, Chief Physician, Professor, and Doctoral Supervisor. He is a recipient of the special government allowance and was recognized as the 9th National Health Outstanding Contribution Young and Middle-aged Expert. He is dedicated to the clinical, research, and teaching work of benign and malignant gynecological tumors. He specializes in the diagnosis and surgical treatment of various gynecological tumors, is skilled in laparoscopic techniques, and is highly experienced in the chemotherapy of gynecological tumors, especially gestational trophoblastic tumors. His main research directions include the surgical and comprehensive treatment of benign and malignant gynecological tumors, the standardized diagnosis and treatment of gestational trophoblastic tumors, and strategies for refractory cases.