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Survival based on tumor subsite, EGFR amplification status. Five-year overall survival (x-axis in months) from 522 TCGA patients with CNV data on EGFR amplification in oral cavity (OC) and laryngeal (L) SCCs. A trend to worse overall survival based on EGFR amplification is seen with laryngeal SCCs (log-rank p = 0.08), but not oral cavity SCCs (log-rank p = 0.263).
