EVPL and chronic myelogenous leukemia, BCR-ABL1 positive: In our experiments, we used a multiplex ddPCR assay for p210 BCR–ABL1 Major translocations in the peripheral blood of CML patients, which can quantify the target (BCR–ABL1 Major translocations) and the housekeeping (ABL1) genes in the same well, returning an absolute quantification.