To our knowledge, the options used in previous studies could be daunomycin [104], ferrocenium hexafluorophosphate (FcPF6) [104], Meldola Blue (MDB) [35], MB [109], etc. MB was used as hybridization indicator to detect DNA sequence that relates to Chronic Myelogenous Leukemia (CML, Type b3a2) [36]. Here, ABR is linked to chronic myelogenous leukemia, BCR-ABL1 positive.