Furthermore, tumor differentiation was significantly correlated with other factors including ERCC1 IHC score (R = 0.644, P = 0.000, also see Figure 3F), tumor long axis (R = -0.323, P = 0.006), clinical stages (R = -0.499, P = 0.000) or gender (R = 0.286, P = 0. The gene discussed is ERCC1; the disease is neoplasm.