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Osteogenic protein expression of hBMSCs seeded in GC-0 CS, GC-10 CS, GC-20 CS, and GC-40 CS scaffolds at day 7: (a) Type-I collagen (Col1) and BMP2 confocal images and (b) ImageJ semiquantitative analysis of confocal images. Statistical analyses: One-way ANOVA followed by Post-Hoc LSD test; ** p < 0.01 indicates level of statistical significance between all groups against GC-0 CS.
