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Cytotoxicity of G3B18N and G3B31N (A), nimesulide alone (B), or native PAMAM G3 dendrimer (C) against BJ and SCC-15 cells after 24 h incubation, expressed as percent of control. Results are expressed as percentage of non-treated control. Squares show medians and whiskers are lower and upper quartile. * p < 0.05 significant difference against control estimated with Kruskal-Wallis test.
