1. Center for Embryonic Cell and Gene Therapy, Oregon Health & Science University, Portland, OR, USA.
2. Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022 Anhui, China.
3. Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR, USA.