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Expression of β-catenin protein in human gastric adenocarcinoma and matched distant non-cancerous tissues by immunohistochemistry. (A) Weak β-catenin expression (+) in distant non-cancerous tissues. (B) Weak β-catenin expression (+) in different stages of gastric cancer. (C) Weakly positive β-catenin expression (++) in different stages of gastric cancer. (D) Strongly positive β-catenin expression (+++) in different stages of gastric cancer. Original magnification, ×200.
