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Effect of dosing vehicle on time-course distribution of unmetabolized fluoranthene (FLA) in plasma, jejunum, and feces of F-344 rats that received 50 μg FLA/kg body wt. via oral gavage. Values represent mean ± SE (n = 6). Asterisks denote statistical significance (p < 0.05) at the respective time point compared to 2 hour post-exposure.
