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Figure 1

From: Sperm enrichment from poor semen samples by double density gradient centrifugation in combination with swim-up for IVF cycles

Figure 1

A second DGC significantly improves the recovery rate of motile sperm from poor semen samples. Normal or poor semen samples underwent two consecutive DGCs (462 g for 15 min), (A) Representative images of sperm precipitation after the first DGC (left tube) and second DGC (right tube). (B) Ratio of the total sperm count in the second DGC to the first DGC. (C) Ratio of PR sperm in the second DGC to first DGC. Normal semen samples vs. poor semen samples; ***P < 0.001.

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