The identification of the same genes through different experimental approaches (Agilent, Affymetrix, NCBI) and in different patient sets is a strong argument for their importance in TEL/AML1-positive leukemia process [17], and for the relevance of the additional eight newly identified genes (RUNX1, SCARB1, TP53INP1, ACVR1, EGFL7, CTGF, LSP1, TFPI). This evidence concerns the gene ACVR1 and leukemia.