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Photomicrography of colon of different groups: (A) Non-colitic group; (B) TNBS-control group; (C) prednisolone (2 mg/kg); (D) 5% cattail rhizome flour; (E) 10% cattail rhizome flour; (F) 5% cattail rhizome flour + prednisolone (2 mg/kg); (G) 10% cattail rhizome flour + prednisolone (2 mg/kg).
