MECOM and acute lymphoblastic leukemia: In accordance with their data,3 we identified BCLX (fold change −1.8, P=0.007) and PUMA (FC=−1.9, P=0.005) in T-cell ALL when determining EVI1-co-regulated genes by selecting for significantly changed (P<0.01, analysis of variance) low and high expressed genes in paediatric T- and B-cell ALL with EVI1 expression >log1.5.