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Adhesion rate of hFOB1.19 osteoblast cells cultured with the SF-CS scaffold, TGF-β1-SF-CS scaffold and the control. Data are expressed as the mean ± standard deviation. *P<0.05, vs. the control group; #P<0.05, vs. previous durations of the same scaffold group. TGF, transforming growth factor; SF, silk fibroin; CS, chitosan.
