Because I'm retired. The professor (who worked in Peking Union Medical College Hospital for 62 years and enjoyed special allowance from the State Council, and studied under Professor Lin, a famous gynecologist) and the director (who followed the professor for many years and was a core member of the Gong Bao Group of adenomyosis) have now retired. Sun Aida, female, chief physician, guidance expert, graduated from Shanghai First Medical College 1955, and worked in the obstetrics and gynecology department of Peking Union Medical College Hospital for 50 years. 65438-0980 went to MDAnderson Hospital in the United States to study gynecological tumors. He has rich clinical experience, especially in the diagnosis and treatment of gynecological tumors, endometriosis, infertility, gynecological difficult diseases and gynecological laparoscopic surgery. 1992 won the third prize of medical and health science and technology progress of the Ministry of Health. It pioneered the microwave and semiconductor laser treatment under gynecological laparoscopy, and was invited to the United States, China, Hongkong, South Korea, Israel and other countries for four times to attend the international gynecological endoscopic conference. He has published nearly 80 professional papers in Chinese and English, among which "Laparoscopic Surgery for Gynecological Diseases" won the Excellent Medical Paper Award. Participated in the preparation of ten gynecological books, among which gynecological oncology won the first prize of national excellent scientific and technological books.