Effectiveness of Chinese herbal medicine for patients with primary insomnia: A PRISMA-compliant meta-analysis.

Medicine (Baltimore) · 2019 · PMC6587651 · PMID 31192935

Europe PMC DOI

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a positive trendno p-value reported

Although numerous studies reported no significant differences between CHM and placebo for the above factors, all studies reported a positive trend for the effects of CHM versus placebo for patients with primary insomnia.

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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.