1. State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences Southwest University Chongqing 400716 China
2. Chongqing Reproductive and Genetics Institute, Chongqing Obstetrics and Gynecology Hospital Chongqing 400013 China
3. Department of Orthopaedic 920th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army Kunming 650032 China
4. Cancer Center, Reproductive Medicine Center, Medical Research Institute Southwest University Chongqing 400716 China