1. Department of Gynecologic Oncology, Maternal and Child Health Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei 430070, P.R. China
2. Department of Pathology, Maternal and Child Health Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei 430070, P.R. China