1. Department of Oncology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
2. Department of Head & Neck and Thyroid The Cancer Hospital Affiliated to Zhengzhou University Zhengzhou China
3. Department of Oncology Henan University of Chinese Medicine Zhengzhou China
4. Department of Obstetrics and Gynecology Zhengzhou Central Hospital Affiliated to Zhengzhou University Zhengzhou China