Burden of migraine related to menses: results from the AMPP study.

J Headache Pain · 2015 · PMC4406925 · PMID 25902814

Europe PMC DOI

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a clear trendno p-value reported

However, there is a clear trend of overall greater burden in the MM group than in MAM and both have greater burden than the MUM.

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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.