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. 2017 Aug 20;9(8):908. doi: 10.3390/nu9080908

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Acute effects of anthocyanins relative to control for vascular stiffness (assessed via PWV and AI). The forest plot has one line representing each study in the meta-analysis, plotted according to the mean difference (indicated by the black diamond in each line). The horizontal line joins the lower and upper limits of the 95% CI of these effects. The black diamond at the bottom of each graph represents the average effect size for PWV and AI studies. The red diamond represents the average effect size for all studies assessing vascular reactivity.