title: Philadelphia chromosome-positive acute leukemia with lymphoblastic characteristics.
mesh_terms: D002675:Child, Preschool; D002904:Chromosomes, Human, 21-22 and Y; D006801:Humans; D007621:Karyotyping; D007945:Leukemia, Lymphoid / Q000188:drug therapy / Q000235:genetics*; D008297:Male