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Forearm blood flow measured six hours after diesel exhaust (solid line) and filtered air (dashed line) exposure during unilateral intra-brachial infusion of bradykinin (Bk), acetylcholine (Ach), sodium nitroprusside (SNP) and verapamil (Vp) in infused and non-infused (dotted lines) arms. Effect of exposure compared with using 2-way ANOVA with repeated measures. Data plotted as mean ± SEM. P-values are given for diesel exhaust exposure vs. air.
