Liufeng Xu1, Yawen Wang1, Na Wang1, Ling Min1, Ying Zheng2. 1. Department of Gynecologic Oncology, West China Second Hospital, and Key Laboratory of Birth Defects and Related Diseases of Women and Children (all authors), Sichuan University, Ministry of Education, Chengdu, Sichuan, China. 2. Department of Gynecologic Oncology, West China Second Hospital, and Key Laboratory of Birth Defects and Related Diseases of Women and Children (all authors), Sichuan University, Ministry of Education, Chengdu, Sichuan, China.. Electronic address: 3466151769@qq.com.