In GCB-DLBCL there were no differences in survival HRs for the addition of rituximab to CHOP in patients with high or low PARP1 expression (high PARP1: HR 2.3, CI 1.4–4.8, p = 0.003 vs low PARP1 HR 2.6, CI 1.4–4.8, p = 0.0005, Fig 3E). The gene discussed is PARP1; the disease is diffuse large B-cell lymphoma.