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Immunohistochemistry results of the expression of transforming growth factor β1 (TGF-β1) in esophageal tissues of rats in each group (magnifiction, ×400). (A) Esophageal tissue of rat in the non-intervention group. (B) Esophageal tissue of rat in the radiation group. (C) Esophageal tissue of rat in the cWPROL treatment group. (D) Esophageal tissue of rat in the mLDG treatment group.
