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Pairwise correlations of ff calculated by the four tools. Pairwise scatter plots with regression lines for ff estimated by the four tools as indicated on the main diagonal for cohort 1 (below the diagonal) and cohort 2 (above the diagonal). Correlation values are indicated in Supplementary Table 4. Color code: cohort 1, gold; cohort 2, grey; regression line, black and CI: confidence intervals, light grey shadow.
