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Biochemical quantification of total sGAG (A) and ELA (B) synthesis by MSCs in PGS-PCL scaffolds cultured in normal and conditioned media. #Significant difference (p<0.05) relative to the baseline level at day 0; **significant difference (p<0.05) between normal and conditioned constructs or between day 7 and 21 conditioned culture. sGAG, sulfated glycosaminoglycan.
