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Expression of claudin‐3, claudin‐4 and claudin‐18 in non‐neoplastic gastric mucosa. (A) Representative illustrations of the expression of claudins and Cdx2 in normal pyloric gastric mucosa. (B) Summary of the expression of Cdx2, claudin‐3, claudin‐4 and claudin‐18 in non‐neoplastic gastric mucosa.
