title: Letter: Giant A1 chromosome in human blast-cell leukaemia.
mesh_terms: D000368:Aged; D001854:Bone Marrow Cells; D002869:Chromosome Aberrations; D002900:Chromosomes, Human, 1-3; D002904:Chromosomes, Human, 21-22 and Y; D002905:Chromosomes, Human, 4-5; D005260:Female; D006801:Humans; D007621:Karyotyping; D007938:Leukemia / Q000235:genetics*