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Cell invasion assay with high passage NRM2 cells exposed to tMWCNTs or rMWCNTs. Low passage (P12) as negative control. *** p < 0.001, ** p < 0.01 compared to P85 control. ###p < 0.001 between P85 tMWCNT and P85 rMWCNT. Data are from a single experiment representative of three experiments. Each experiment contained 16 replicates per group.
