1. Department of Gynecological Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430079, P.R. China
2. Department of Pathology, Jingzhou Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jingzhou, Hubei 434020, P.R. China
3. Department of Pathology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430079, P.R. China