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. 2022 Jul 26;130(7):077005. doi: 10.1289/EHP10009

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EHP is an open-access journal published with support from the National Institute of Environmental Health Sciences, National Institutes of Health. All content is public domain unless otherwise noted.

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Figure 4 is a line graph, plotting log to the base 10 of concentration in serum (nanogram per milliliter), ranging from 1 to 6 in unit increments (y-axis) across hours, ranging from 630 to 680 in increments of 10 (x-axis). — Modeled perfluorobutane sulfonic acid (PFBS) serum concentrations over time upon daily dosing together with 28-d serum concentrations (symbols) in male rats ( $lowercase italic n equals 10$ ) as reported in NTP,⁹⁹ plotted on $log begin subscript 10 end subscript$ -scale. Only the last $approximately 48 hours$ of the experiment are shown. Note: Lowest solid line and circles $equals 62.5 milligrams per kilogram body weight per day$ ; dashed line and triangles $equals 125 milligrams per kilogram body weight per day$ ; dotted line and plusses $equals 250 milligrams per kilogram body weight per day$ ; upper solid line and crosses $equals 500 milligrams per kilogram body weight per day$ . To distinguish measured points, they have been shifted slightly.