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This project was supported by grants from National Key R&D Program of China(No.2018YFC1002103);Natural Science Foundation of China(No.81801531).
This study compared the clinical outcomes of the frozen-thawed cycles of high-quality cleavage embryos with low-quality blastocysts to provide a reference for the choice of frozen-thawed embryo transfer schemes and to...
Capsule: Although embryos with synchronous blastomere cleavage showed higher post-thaw survival rates, pregnancy rates did not differ. Thus, embryos with all cleavage patterns may be safely cryopreserved. Objective: T...