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A. Representative images of Ki67 immunohistochemical staining of tissues of the jejunum and tumor at 3.5 days after local IR (200× magnification). B. Ki67-positive cells were counted in 10 unduplicated fields visualized at 400× magnification. Data are shown as the mean of 10 view fields±standard deviation (*, p<0.05; **, p<0.01).
