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Figure 2 Blood concentrations (mean ± SD) of N-terminal pro-atrial natriuretic peptide (NT-proANP) in congestive heart failure (CHF) patients and in elderly healthy controls ( 50 years). Main effects of study groups were observed (analysis of variance; p < 0.001). ***Significant differences between CHF patients and elderly controls, p < 0.001 (post hoc Tukey test).
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