BCR and chronic myelogenous leukemia, BCR-ABL1 positive: The terminology employed is based on the recommendations of the Minimum Information for Publication of Quantitative Real-Time PCR Experiments (MIQE) guidelines16 and the proposal focuses on qPCR assays for the most common BCR-ABL1 variants (e13a2 and/or e14a2; 97% of CML patients) that use an external plasmid calibrator to estimate numbers of target molecules.