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Heart rate (A), cardiac output (B), and systemic vascular resistance (C) in tertiles of plasma parathyroid hormone concentration adjusted for sex; mean (circle) with s.e.m. (whiskers), multivariable ANOVA for repeated measures with the Bonferroni correction. Covariates as in Fig. 1. *P < 0.05, tertile 3 vs. tertile 1 during the 10 min of recording.
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