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. 2020 Jan 7;15(1):e0222620. doi: 10.1371/journal.pone.0222620

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© 2020 Nwaroh et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 3 — Pairwise comparison for changes in metabolite levels for all intervention groups (sham in black, tDCS in red and HD-tDCS in blue) over the duration of the experiment given as a percentage change from baseline values (mean ± 1 SD). * p < 0.05, those in bold withstand Bonferroni correction for multiple comparisons while those that are transparent lose significance following multiple comparisons correction. # p < 0.05 when compared to baseline. Cr: Creatine, Cho: Choline, NAA: N-Actylaspartic Acid.