B-cell acute lymphoblastic leukemia after lenalidomide maintenance therapy; a deleterious adverse event that needs further investigation. Report of three cases and review of the literature

Arribas I, Maluquer C, Pomares H, Carro I, Baca C, Bosch A, Arévalo CE, Montané C, Ribes-Amorós J, Zamora L, Granada I, Gamundi E, Arnan M, Sureda A.