The following keywords were included: “EGFR-TKI OR epidermal growth factor receptor tyrosine kinase inhibitors OR erlotinib OR gefitinib OR osimertinib OR icotinib OR dacomitinib OR afatinib” AND “lung neoplasms OR carcinoma, non-small-cell lung OR non-small cell lung cancer OR NSCLC OR resected NSCLC OR operable NSCLC” AND “adjuvant therapy”. Here, EGFR is linked to non-small cell lung carcinoma.