Epidemiologic Studies in Whooping Cough.

Yale J Biol Med · 1938 · PMC2602002 · PMID 21433783

Europe PMC

hedged sentence

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closest p

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boldest claim

The sentences

probably not significantno p-value reported

Since their susceptible group induded adults, these figures are probably not significant because a high percentage of these adults may well have had pertussis.

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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.