The most commonly used EGFR mutation testing method for the tumor tissue samples was the QIAGEN therascreen® EGFR RGQ PCR kit (QIAGEN, Manchester, UK; n = 76; 52.1%) followed by the Roche cobas® EGFR Mutation Test (Roche Molecular Diagnostics, Pleasanton, CA; n = 41; 28.1%). This evidence concerns the gene EGFR and neoplasm.