Yang Jing (Chief Physician) graduated from Gynecology Department of Medical College in his early years and has been engaged in clinical work in gynecology for many years. He has been invited to participate in large-scale international seminars on cervical diseases for many times, and published more than ten papers on cervical cancer and human papillomavirus infection in the National Medical Punishment. He has rich clinical experience in gynecological diseases such as vaginitis, cervicitis, cervical erosion, pelvic inflammatory disease, adnexitis, hysteromyoma, endometriosis, irregular menstruation and infertility.