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. 2021 Apr 30;14:521–531. doi: 10.2147/PGPM.S304747

Figure 2.

Figure 2

mtDNA/gDNA ratio in embryo culture medium for different cleavage stages on day 3. The high-quality embryo group is categorized as Grade A (n = 62), the medium-quality group is Grade B (n = 85), and the poor-quality embryo group is Grade C (n = 76). One black dot, triangle, or square represents one sample. Data are presented as the median with interquartile ranges (Q1–Q3). (**P <0.01, *P<0.05).