A measure for the impact of research.

Sci Rep · 2013 · PMC3622913 · PMID 23575957

Europe PMC DOI

hedged sentence

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closest p

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boldest claim

The sentences

a clear trendno p-value reported

The figure shows a clear trend of impact increase over the years, with the sudden increase in the first portion of the curves suggesting the lack of data prior to 1996.

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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.