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Cartilage matrix production in the presence of KGN-loaded microparticles (MPs) in mesenchymal stem cell (MSC) aggregates. a Histological evidence of chondrogenesis in the [MSC] Agg, [MSC/MP] Agg, [MSC/KGN-MP] Agg and [MSC] Agg + Ch media groups after 14 days. b Sulfated glycosaminoglycan (sGAG) content in the aggregate groups. Data are presented as mean ± SD, (n ≥ 3). **p < 0.01
