BCR and acute lymphoblastic leukemia: We transfected BCR::ABL1‐positive ALL BaF3 cell lines with the plasmid with BCR::ABL1 wild‐type or BCR::ABL1 with F401V, K262T, R239G, and R516L mutation genes by electro‐transfection and measured cell viability after exposure to increasing concentrations of imatinib, dasatinib, flumatinib, or olverembatinib.