Institution: | 1. The Second Hospital of Jilin University, Reproductive Medical Center, Changchun, Jilin, P.R. of China;2. Jilin Provincial Cancer Hospital, Department of Breast oncology, Changchun, Jilin, P.R. of China;3. College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, P. R. of China;4. The Affiliated Hospital of Qingdao University, Qingdao, Shandong, P. R. of China |