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. 2014 Feb 25;122(5):499–505. doi: 10.1289/ehp.1307539

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Histograms of log-transformed ratios of batch-calculated BMDs to NOAELs (A), BMDLs to NOAELs (B), and LOAELs to NOAELs (C). The y-axis shows the frequency counts; the x-axis shows the magnitude of the ratio; the dashed lines indicate the 5th and 95th percentiles of the distribution; and the arrows indicate median values.