It was also observed that patients with an EGFR mutation in exon 19 or 21 and no lymph node metastasis had longer DFS when P-s207 LysRS was present in the nucleus compared to patients with absent nuclear P-s207 LysRS, 67.5 months vs. 52.4 months respectively (p = 0.046) (Figure 5A). This evidence concerns the gene EGFR and metastatic malignant neoplasm in the lymph nodes.