Bibliometric Assessment of European and Sub-Saharan African Research Output on Poverty-Related and Neglected Infectious Diseases from 2003 to 2011.

PLoS Negl Trop Dis · 2015 · PMC4532507 · PMID 26262756

Europe PMC DOI

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The sentences

an increasing trendno p-value reported

We observed an increasing trend for research output to be published in open-access journals for 2007–2011.

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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.