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Immunohistochemical staining for EPCAM in gastric cancer lesions (601 case) and noncancerous tissues (92 case). A: EPCAM was negative in noncancerous tissues, B: EPCAM was highly expressed in well differentiated adenocarcinoma, C: EPCAM was highly expressed in moderately differentiated adenocarcinoma, D: EPCAM was highly expressed in poorly differentiated adenocarcinoma.
