EGFR and TTF-1 gene amplification in surgically resected lung adenocarcinomas: clinicopathologic significance and effect on response to EGFR-tyrosine kinase inhibitors in recurred cases.

EGFR and TTF-1 gene amplification in surgically resected lung adenocarcinomas: clinicopathologic significance and effect on response to EGFR-tyrosine kinase inhibitors in recurred cases.