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Figure 2
Protein levels assessed by western blot analysis (left side) and quantified as a relative optical density ratio vs. B-actin (right side) of (A) B-catenin and (B) ERK and pERK on protein lysates from MSCs after 3, 7 and 14 days of chondrogenic differentiation. (** p < 0.005; *** p < 0.001 vs. expression levels of MSCs after 3 days of differentiation).
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