Fig. 4From: The influence of inhaled multi-walled carbon nanotubes on the autonomic nervous systemBar graph depicting % change of pNN5 (a) and pNN10 (b) from the basal level before exposure (pNN5 (Control vs MWCNTs: 15.65 ± 3.88 vs 15.49 ± 3.18), pNN10 (Control vs MWCNTs: 3.96 ± 1.25 vs 3.31 ± 0.82)). Each value represents the mean ± SE of 8 rats. P < 0.01 compared with control group (*)Back to article page