EGFR and non-small cell lung carcinoma: The frequency of EGFR mutation is much higher in NSCLC never-smokers compared to smokers (49.3% vs. 21.5%), females compared to males (43.7% vs. 24.0%), LUAD compared to non-LUAD (38.0% vs. 11.7%), and Asians compared to non-Asians (38.4% vs. 15–20%) [177].