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(A) Average stress–strain curves for 28 days groups and (B) 56 days groups. (C) Ultimate stress (i.e., strength) increased significantly from 28 to 56 days, and decreased due to BMP2 treatment. (D) Modulus was lower in the BMP2 group compared to the suture group. Modulus was lower in the acellular group compared to the suture group at 56 days. Bars: mean + SD, lines over bars indicate p < 0.05.
