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Rich club organization. (A): The mean normalized rich club coefficient curve under a series of thresholds k for each group. (B): Rich-club regions in OCD, FDR, and HC groups. (C): Group differences in the connection strength of the overall, rich club, feeder, and local connections. PUT: putamen; PreCG: precentral gyrus; PCUN: precuneus; SMA: supplementary motor area; PoCG: postcentral gyrus; MTG: temporal middle gyrus. L: left; R: right. *: p < 0.05, **: p < 0.01, ***: p < 0.001.
