1. Center for Reproductive Medicine, Cheeloo College of Medicine, State Key Laboratory of Microbial Technology, Shandong University , China
2. National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University , Jinan, Shandong 250012, China
3. Key Laboratory of Reproductive Endocrinology of Ministry of Education , Jinan, Shandong 250001, China
4. Shandong Provincial Clinical Research Center for Reproductive Health , Jinan, Shandong 250012, China
5. Shandong Key Laboratory of Reproductive Medicine , Jinan, Shandong 250012, China
6. Advanced Medical Research Institute, Shandong University , Jinan, Shandong 250012, China
7. Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University , Jinan 250014, Shandong, China