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Heatmap representing the cell‐free DNA (cfDNA) sample origin, the associated FFPE results (at initial diagnosis), as well cfDNA results: (a) the principal epidermal growth factor receptor (EGFR) mutation detected (at disease progression) and (b) the resistance mutation (at disease progression) detected with both the OncoBEAM™‐EGFR and the NGS‐56G assays for the whole cohort
