Yu H, Zhang G, Gong B, Li S, Guo C, Liu Y, Gu R, Xu Y, An G, Wei H, Wang M, Rao Q, Liu W, Wang J, Qiu S. Single-cell dissection of plasma cell clonal evolution to smoldering multiple myeloma after CD19 CAR-T cell therapy in B-cell acute lymphoblastic leukemia. Haematologica; https://doi.org/10.3324/haematol.2025.300240 [Early view].