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This study was conducted to clarify the relationship between E-cadherin expression on tumor and lymph node metastasis as well as its prognostic roles in resected non–small-cell lung cancer. Two hundred forty-nine patients, who underwent surgical resection (stage I-IIIA), were examined. Paraffin-embedded sections of the primary tumors in all cases and of the metastatic lymph nodes in stage IIIA disease...
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