Based on our results, we are proposing that the SuperScript® III Reverse Transcriptase kit, by Invitrogen, is the more suitable, among the ones used in this study, for cDNA synthesis to be used for the detection of BCR-ABL1 at the MMR level in a CML MRD assay. Here, ABL1 is linked to chronic myelogenous leukemia, BCR-ABL1 positive.