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Genomic features of EGFR‐amplified biliary tract cancer in the dataset of 707 previously reported cancers, available at c‐BioPortal (https://www.cbioportal.org/) [9, 10, 11, 12]. (A) Proportion of EGFR‐amplified cases. (B) Oncoprot of 15 EGFR‐amplified cases. Gene alterations were annotated using OncoKB (https://www.oncokb.org).
