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Figure 2 a, Flow-mediated dilation in placebo subgroup (striped bars at baseline; solid bar after treatment) and vitamin E–treated subgroup (open bar at baseline; solid bar after treatment). Flow-mediated dilation was not altered in the placebo group, but showed a significant increase after vitamin E therapy. b, Nitroglycerin-induced vasodilation. After vitamin E supplementation, there was a trend toward an improvement in the NTG response.
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