PBX1 and acute lymphoblastic leukemia: Stjude(S)([13]). The dataset has been divided into six diagnostic groups, BCR-ABL (9 samples), E2A-PBX1 (18 samples), Hyperdiploid50 (42 samples), MLL (14 samples), T-ALL (28 samples) and TEL-AML1 (52 samples)), and one that contains diagnostic samples (52 samples) that did not fit into any one of the above groups.