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Figure 2 (A) Muscle sympathetic nerve activity (MSNA) (open bars) and (B) single-unit MSNA (s-MSNA) (solid bars) cardiac baroreceptor reflex sensitivity (BRS) in subjects with neurovascular compression, NVC (+), and without, NVC (–). The numbers in parentheses below the x-axis represent the number of subjects. Data are expressed as the mean (height of columns) ± SEM (bars). The unpaired t test was used to test for statistical significance (ns = not significant).