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Characterizations of compressive modulus (A) and sGAG content (B) in dual-gradient vs single-gradient hydrogels at day 1. Statistical analyses were performed using two-way ANOVA. *P < 0.01 compared to mechanical; #P < 0.01 compared to CS; posthoc student’s t test corrected using Benjamin-Hotchberg procedure (n = 3/group).
