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Box plots of the DOAC concentrations at the peak (grey) and the trough for the chronically anticoagulated patients included in this study. The table reports the numerical results. The p-values (* p < 0.05, ** p < 0.01, *** p < 0.001) refer to the non-parametric test for the paired data (Wilcoxon), trough vs. peak. The p-values (§ p < 0.05, §§ p < 0.01, §§§ p < 0.001) refer to the non-parametric test for the unpaired data (Mann–Whitney), trough or peak vs. VKAs.
