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Cell viability of MG-63 cells (a) and MC3T3-E1 cells (b) after incubation with the SF/CM-PDA scaffolds for 72 h. Cell viability of MG-63 cells (c) and MC3T3-E1 cells (d) after being treated with the SF and SF/CM-PDA scaffolds and CM at the same CM concentration level within 5 days. Data are expressed as mean ± standard deviation (n = 6); *p-value < 0.05, **p-value < 0.01, and ***p-value < 0.001.
