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Myogenic differentiation of C2C12 cells on PEA surfaces coated with mixtures of FN and VN in different ratios. A) Sarcomeric myosin‐positive cells (red) and nuclei (blue) after 4 d of culture. B) Differentiation levels measured as the percentage of sarcomeric myosin‐positive cells. C) Perimeter‐to‐area ratio of the myotubes as an indicator of cell fusion. Dotted lines are guides for the eye. Statistically significant differences are indicated with *p < 0.05.
