Figure 7.

Liver levels of CYP2E1 protein in vehicle- (black dot) and PERC- ($\mathrm{1,000}\mathrm{mg/kg}$, i.g., red dot) exposed Collaborative Cross mice 24 hr following a single intragastric gavage. A shows change in the individual strains that were ordered according to the values in vehicle-treated mice. B shows population average as box and whisker plots (see Figure 2 for the legend).