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Invasion of CD3+ cells in the circular muscle layer 7 d after HI. Representative intestinal sections of (A) control and (B) HI animals were stained by immunohistochemistry for CD3. For each experimental group, CD3+ cells (arrow) in the mucosa (C) and circular muscle layer (D) were counted, and the mean cell counts per power field per animal are given. The scale bar in panels A and B represents 50 μm. The scale bar in insets represents 20 μm. *p < 0.05.
