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Scratch areas measured for HGFs cultured on each of the five titanium surfaces tested. Data are reported as the mean ± SEM of three different experiments, carried out in duplicate (see Materials and Methods for details of the calculation). Statistical analysis was performed by one-way ANOVA followed by Bonferroni’s post hoc test: * p < 0.05, ** p < 0.01, *** p < 0.001.
