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Maximal vasorelaxant responses of serotonin (1 µmol/L)-precontracted human lobar arteries induced by acetylcholine (10 µmol/L) in normotensive patients (NT) and patients with arterial hypertension (AH). Values are the mean ± S.E.M. Significant differences were evaluated by one-way ANOVA. Bonferroni post hoc test was used to describe the differences in mean values of the experimental groups. ** p < 0.01 with respect to the NT response.
