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Histological findings of instability-induced OA in wild-type (WT) and Col2-Ugcg−/− littermates 8 weeks after surgery. A, HE staining (top) and safranin-O (Saf-O) staining (bottom). Scale bars = 100 µm. B, Mankin score of WT and Col2-Ugcg−/− littermates (n = 8 per group). Data shown are mean ± SEM. * = P < 0.01.
