In addition, we found a positive association between the gene expression level of CD2, CD3D, CD3E, and CXRC6 and the activated fraction of NK cells present in the tumor (CD2: Rho=0.442, CD3D: Rho=0.460, CD3E: Rho=0.423, and CXCR6: Rho=0.401). The gene discussed is CD2; the disease is neoplasm.