Repeated mild traumatic brain injury can cause acute neurologic impairment without overt structural damage in juvenile rats.

As shown in Fig 5D There were no significant interactions or effects on the total distance to locate the escape hole, although a main effect of group approached significance (F(1,32) = 4.156, p = 0.050 ) with a moderate effect size (η p 2 = 0.115), indicating further exploration is warranted.

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