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Cellular localization of AK4 in the small intestine (ileum). Immunohistochemical analyses were performed using anti-AK4 (A, B) and double -stained with PAS and AK4 antibody (C–F). Bar=100 µm (A–D), and 20 µm (E, F). IG, intestinal gland; Ms, muscularis mucosae. Asterisks indicate Paneth cells; arrows indicate goblet cells.
