首先根据胚胎发育速度及形态评级，再根据受精卵原核等级的联合评级选择移植胚胎。
Embryos for transfer were selected initially by embryo growth rate and morphology, secondarily by zygote grade.
首先根据胚胎发育速度及形态评级，再根据受精卵原核等级的联合评级选择移植胚胎。
Embryos for transfer were selected initially by embryo growth rate and morphology, secondarily by zygote grade.
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