The efficacy of transcranial magnetic stimulation on migraine: a meta-analysis of randomized controlled trails.

J Headache Pain · 2017 · PMC5567575 · PMID 28831756

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slight significanceno p-value reported

Given the small sample sizes in this study, the change of heterogeneity is slight significance.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.