title: Unusual translocations in Ph1-positive acute lymphoblastic leukaemia.
mesh_terms: D000293:Adolescent; D000328:Adult; D002900:Chromosomes, Human, 1-3; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D007621:Karyotyping; D007945:Leukemia, Lymphoid / Q000235:genetics*; D014178:Translocation, Genetic