1. Department of Gynecological Oncology and Cancer Research Institute Fudan University Shanghai Cancer Center Shanghai 200032 P. R. China
2. Department of Oncology Shanghai Medical College, Fudan University Shanghai 200032 P. R. China
3. Department of Gynecology and Obstetrics Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine Shanghai 200092 P. R. China
4. Department of Pathology and Tissue Bank Fudan University Shanghai Cancer Center Shanghai 200032 P. R. China
5. Department of General Surgery Huadong Hospital Affiliated to Fudan University Shanghai 200040 P. R. China
6. Clinical Research Unit of Shanghai Municipal Hospital of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Shanghai 200071 P. R. China