highly significantP < 0.01
Differences between groups were considered statistically significant at ∗ P < 0.05, and highly significant at ∗∗ P < 0.01 and ∗∗∗ P < 0.001. 3 Results 3.1 Characterization of FMHM MF induction has been proved to be an effective auxiliary means to construct continuous gradient scaffold, which is usually realized by magnetic medium and external MF.