1. Department of Gynecologic Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
2. Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
3. Graduate Department, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China