1. Obstetrics and Gynecology Department Xi'an People's Hospital (Xi'an Fourth Hospital) Xi'an China
2. Obstetrics and Gynecology Department Yulin NO.2 Hospital Yulin China
3. Gynecology Department Maternal and Child Health Care Hospital of Zibo Zibo City China
4. Department of Physiology and Pathophysiology Air Force Medical University Xi'an China
5. Oncology Department Daxing Hospital Xi'an China