Dr. Xu Xiaoyan of Tongji University has a strong professional ability. She is a doctor of obstetrics and gynecology in tongji hospital affiliated to Tongji Medical College. Her main research interests are non-invasive prenatal diagnosis and eugenics. She specializes in ultrasound in obstetrics and gynecology, mainly engaged in prenatal diagnosis of fetus and ultrasound diagnosis of various gynecological diseases. She presided over and participated in many national and provincial projects and published many SCI articles. Therefore, Dr. Xu Xiaoyan of Tongji University has a high reputation and influence in the professional field, so she is very popular in the professional field.