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Reduced fractional anisotropy (FA) after repeated mTBI. (A) Representative FA images for sham (top row) and repeated mTBI (bottom row) rats at Day 1 and Day 7 recovery. (B) Repeated mTBI resulted in significantly decreased FA in the contralateral corpus callosum as compared to sham rats at both Day 1 and Day 7 recovery (see white arrows). Mean ± SEM, *P < 0.05. See Results for further details.
