Supplemental Data Figure 1. A. Scatter plot of the original values of MR-proANP and NT-proBNP. A natural log scale was used for both axes. B. Bland-Altman plot of the logarithmically transformed MR-proANP and NT-proBNP values. For the Bland-Altman plot z-scores were calculated. The y-axis represents the difference between the z-scores of MR-proANP and the z-scores of NT-proBNP. The lines indicate the mean difference between z-scores and its 95% confidence interval (limits of agreement).