Four of 12 ETP-ALL patients were defined as GATA3low (mean GATA3 expression ± s.e.: 0.08 ± 0.05), while the remaining eight patients were GATA3high (mean GATA3 expression ± s.e.: 6.4 ± 1.5). The gene discussed is GATA3; the disease is acute lymphoblastic leukemia.