1, Dong, Chief Physician, Reproductive Medicine Center, Zhongshan Hospital, Fudan University. She graduated with a master's degree and is the director of the reproductive medicine center. She has worked as a doctor in reproductive medicine center for many years and has rich clinical experience.

2. Doctors are good at infertility caused by various reasons, especially refractory infertility, endocrine disorders, endometrial malnutrition, ovarian dysfunction, and failure of assisted reproductive treatment for many times.

3. Shanghai Ji 'ai Medical Center, namely Shanghai Ji 'ai Genetic and Infertility Clinic, was approved by Shanghai Health Bureau as the first PGD operation in Shanghai on 201/kloc-0. Since the establishment of 15, more than 0000 cases of clinical pregnancy and more than 7000 cases of newborn delivery have been obtained. The center has superb medical skills, advanced equipment and experienced medical team to provide quality services for patients.