李 长 忠(Li, Changzhong)   Director of Obstetrics and Gynecology, Chief Physician     Doctor of Medicine, PhD Supervisor, Chief Expert and Director of the Obstetrics and Gynecology Center at Peking University Shenzhen Hospital, Director of the National Cervical Cancer Early Diagnosis and Treatment Demonstration Base Technology Center. Specializes in the diagnosis and treatment of various gynecological benign and malignant tumors, cervical lesions, and endometriosis. Skilled in open surgery, laparoscopic minimally invasive surgery, vaginal surgeries, and cervical LEEP procedures. Holds significant influence in the field of gynecological cancer prevention and treatment, especially in the comprehensive management of precancerous cervical lesions.