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Figure 1 Mean baroreceptor slopes during pharmacologic intervention. Shown are the mean baroreflex slopes in patients with CSH (white bar), without CSH (dotted bar), control group (dark meshed bar) and with syncope not related to CSH (hatched bar). Baroreflex slopes obtained after bolus injections of nitroprusside and phenylephrine are shown for each group from left to right. *p = 0.001.
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