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Antitumor activity of the epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor gefitinib (ZD1839, Iressa) in non-small cell lung cancer cell lines correlates with gene copy number and EGFR mutations but not EGFR protein levels.
Helfrich BA, Raben D, Varella-Garcia M, Gustafson D, Chan DC, Bemis L, Coldren C, Barón A, Zeng C, Franklin WA, Hirsch FR, Gazdar A, Minna J, Bunn PA Jr. Helfrich BA, et al. Clin Cancer Res. 2006 Dec 1;12(23):7117-25. doi: 10.1158/1078-0432.CCR-06-0760. Clin Cancer Res. 2006. PMID: 17145836
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