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From: Endothelial dysfunction and coronary artery disease: new insights from reactive hyperemia test
![Endothelial dysfunction and coronary artery disease: new insights from reactive hyperemia test](https://image.oaes.cc/bc7f0724-f56c-447a-9ffe-8aee367814c1/4181.fig.1.jpg)
Figure 1. △RI% and Syntax Score according to CAD status. △RI% decreases according to worsening CAD disease status (ANOVA P < 0.001). CAD: Coronary artery disease.