Visualizing clinical evidence: citation networks for the incubation periods of respiratory viral infections - PubMed (original) (raw)

Visualizing clinical evidence: citation networks for the incubation periods of respiratory viral infections

Nicholas G Reich et al. PLoS One. 2011.

Abstract

Simply by repetition, medical facts can become enshrined as truth even when there is little empirical evidence supporting them. We present an intuitive and clear visual design for tracking the citation history of a particular scientific fact over time. We apply this method to data from a previously published literature review on the incubation period of nine respiratory viral infections. The resulting citation networks reveal that the conventional wisdom about the incubation period for these diseases was based on a small fraction of available data and in one case, on no retrievable empirical evidence. Overall, 50% of all incubation period statements did not provide a source for their estimate and 65% of original sources for incubation period data were not incorporated into subsequent publications. More standardized and widely available methods for visualizing these histories of medical evidence are needed to ensure that conventional wisdom cannot stray too far from empirically supported knowledge.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

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