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. Author manuscript; available in PMC: 2021 Jul 20.
Published in final edited form as: Clin Cancer Res. 2019 Feb 22;25(11):3259–3265. doi: 10.1158/1078-0432.CCR-18-3034

Figure 1. FISH amplification cut-off in tumor samples.

Figure 1.

Tumors were deemed positive for EGFR amplification if ≥ 15% (dotted line) of cells demonstrated amplification (defined as EGFR/CEP 7 ratio was ≥ 2). FISH performed on 206 samples; 3 are excluded here (FISH failure).