Instead, when BM‐reconstituted mice were injected with #8‐IK6 (Fig EV4B), more CTRL mice died of B‐ALL compared with IFN‐γ (4/12 CTRL and 2/13 IFN‐γ in two separate experiments; Fig EV4C and D). The gene discussed is IFNG; the disease is precursor B-cell acute lymphoblastic leukemia.