Given the presence of the chimera we expected that i) all pathways including BCR and/or ABL1 genes will have a source set, and ii) the chimera genes will be included in the source set and that iii) the source set of Chronic myeloid leukemia (i.e., the pathway that describes the impact of the fusion genes in the cell) will be composed of only chimera genes. Here, BCR is linked to chronic myelogenous leukemia, BCR-ABL1 positive.