Funding
This study was supported by the National Key Research and Development Program (No. 2018YFC1002102), the Assisted Reproductive Technology Development Cooperation Projects from the Center for International Exchanges and Cooperation in the National Health and Family Planning Commission of the People’s Republic of China (No. (2010)237), the National Key Research and Development Program of China (No. 2016YFC1000201), and the Capital Health Research and Development of Special (No. 2018-1-4091). The study funders had no role in the study design, implementation, analysis, manuscript preparation, or decision to submit this article for publication.