According to the recommendations from previous studies and National Comprehensive Cancer Network (NCCN) guideline, postoperative adjuvant cisplatin-based chemotherapy has been the standard care in patients with completely resected high-risk stage IB and stage II-IIIA NSCLC irrespective of epidermal growth factor receptor (EGFR) mutation status for decades [6, 7]. The gene discussed is EGFR; the disease is non-small cell lung carcinoma.