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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Curr Pain Headache Rep. 2014 Jul;18(7):429. doi: 10.1007/s11916-014-0429-0

Figure 2. Positive response of chronic migraine to M1-tDCS.

Figure 2

Mean pain levels (as assessed by VAS) at baseline, T15, T30, F60, and F120 in the 2 groups of stimulation (active & sham tDCS). Error bars indicate standard error of the mean [••30].