Regarding lung cancer, genetic tests (epidermal growth factor receptor [EGFR] mutation, anaplastic lymphoma kinase [ALK] fusion gene, ROS1 fusion gene, and BRAF V600E mutation) and their respective treatments are covered by insurance, and precision medicine is employed according to the specific genetic mutations observed [1,2,3,4,5,6,7]. Here, EGFR is linked to lung cancer.