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Summary of immunostaining of gastric cancer cases, grouped into (a) those cancers staining negative (score 0–3) or positive (score 4–9) for GKN1 or GKN2, and (b) those staining negative (score 0–3) or positive (score 4–9) for TFF1 or TFF3. P values refer to difference between proportions of the staining expression of these markers in the intestinal and diffuse cancer types.
