1. Department of Clinical Laboratory The First Affiliated Hospital of Zhengzhou University Zhengzhou China
2. Department of Obstetrics and Gynecology The Third Affiliated Hospital of Zhengzhou University Zhengzhou China
3. Department of Anatomy, Histology and Embryology Key Laboratory of Carcinogenesis and Translational Research Ministry of Education State Key Laboratory of Natural and Biomimetic Drugs Peking University Health Science Center Beijing China