CXCL9 and diffuse large B-cell lymphoma: We finally obtained 10 genes that are closely associated with the prognosis of DLBCL patients, including CXCL9, TIFAB, C3, VCVAM1, ZBE, D2, TIMD4, KLHL14, TNFRSF9, FCRL3, and PLEKHG1.