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Figure 1 (A) Median amino-terminal pro-brain natriuretic peptide (NT-proBNP) concentrations across categories of renal function for subjects with and without acute congestive heart failure (CHF) in the ProBNP Investigation of Dyspnea in the Emergency Department (PRIDE) study. In addition, (B), the relationship between B-type natriuretic peptide (BNP) concentrations and renal function in the 209 subjects with acute CHF is demonstrated. Boxes denote interquartile ranges, whereas whiskers indicate 5th and 95th percentiles. GFR = glomerular filtration rate.
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