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Association between the degree of macrophage infiltration and the percentage surface reduction of the HNP between baseline and 1-year follow-up on MRI. Macrophage infiltration groups are shown on the X axis, values on the Y axis are median percentages of axial surface reduction compared to baseline, error bars are interquartile ranges and p values for the Kruskal-Wallis test are provided. Comparison a for the whole population, b for patients without MC, and c for patients with MC
