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Metabolite changes in the left dorsolateral prefrontal cortex. Data are presented as means of NAA/Cr, Cho/Cr, mI/Cr, and Glx/Cr concentrations, compared between baseline (before tDCS) and after a 5-day tDCS treatment (day 5). Vertical lines represent SD. ∗Represents a significant difference; ∗p < 0.05.
