Circulation -- Farquhar et al. 102 (25): 3086 Figure 3

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Figure 3. Mean±SEM R-R interval responses to low levels of LBNP in patients and control subjects. ANOVA detected a significant group effect (P $<=$ 0.05, patients vs controls) for R-R interval, and post hoc analysis revealed differences to be at the –10 and –20 mm Hg stages.