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Figure 2 Effect of high-dose folate on peak (adenosine-stimulated) myocardial blood flow (MBF). Peak adenosine-stimulated MBF was measured in abnormal zones. Individual responses are shown, and group mean data are depicted by the thick line. Folate significantly increased peak MBF (1.45 ± 0.59 ml/min/g vs. 2.16 ± 1.01 ml/min/g, mean ± SD, placebo vs. folate, p < 0.02).