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HE Staining (×200 magnification) and glucagon staining (×400 magnification) in rat ileum. Ileal villus observed in the CUGFR0 (A1) and CUGFR2 (A2) groups with HE staining and NC4 (B1) and CUGFR4 (B2) groups with glucagon staining. Arrow shows a glucagon-positive cell.
