BCR and acute lymphoblastic leukemia: Meanwhile, in the common ALL BCR/ABL− patients, the number of subpopulations with a stable or increased percentage was 0.8 subpopulations/patient, and the RPS of subpopulations with a stable or increased percentage in the common ALL BCR/ABL− patients after chemotherapy exhibited a minimum value of 1.23, a medium value of 2.48, and a maximum value of 9.12.