[1] Center for Reproductive Medicine,
[2] Shandong Provincial Hospital Affiliated to Shandong University,undefined
[3] Key Laboratory of Reproductive Endocrinology,undefined
[4] Shandong University,undefined
[5] Ministry of Education,undefined
[6] and National Research Center for Assisted Reproductive Technology and Reproductive Genetics,undefined
[7] Center for Reproductive Medicine,undefined
[8] Ren Ji Hospital,undefined
[9] School of Medicine,undefined
[10] Shanghai Jiao Tong University,undefined
[11] Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics,undefined