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There were significant correlations between GMV alteration in the left CPL (A) and right parahippocampus (B) with VAS scores in PHN patients. Decreased GMV alteration of the left insula, with pain duration (C). Decreased GMV alteration in left precentral gyrus (D), and left postcentral gyrus (E), with VAS scores in PHN patients.
Abbreviations: CPL, cerebellar posterior lobe; GMV, gray matter volume; PHN, postherpetic neuralgia; VAS, visual analog scale.
