The Role of Onabotulinum Toxin Type A in the Management of Chronic Non-migraine Headaches.

Front Neurol · 2019 · PMC6763695 · PMID 31616362

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a decreasing trendno p-value reported

Similarly, obstructive sleep apnea presented with a decreasing trend with non-significance at both 6 and 12 months.

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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.