1. Department of Immunology, School of Basic Medicine Science, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
2. Department of Histology and Embryology, School of Basic Medicine Science, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
3. Education Department of Guangxi Zhuang Autonomous Region, Key Laboratory of Basic Research on Regional Diseases (Guangxi Medical University), Nanning, P. R. China
4. Department of Gynecology, First Affiliated Hospital, Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
5. Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
6. Department of Histology and Embryology, School of Pre-Clinical Medicine, Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi Zhuang Autonomous Region, P. R. China
7. Ministry of Education, Key Laboratory of Early Prevention and Treatment of Regional High Frequency Tumor (Guangxi Medical University), Nanning, P. R. China