title: The investigation of late cytogenetic effects in children with acute leukaemia in long remission and off all chemotherapy.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D002877:Chromosomes, Human / Q000648:ultrastructure*; D003434:Crossing Over, Genetic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007621:Karyotyping; D007945:Leukemia, Lymphoid / Q000188:drug therapy / Q000235:genetics*; D015470:Leukemia, Myeloid, Acute / Q000188:drug therapy / Q000235:genetics*; D008297:Male; D008727:Methotrexate / Q000627:therapeutic use; D012854:Sister Chromatid Exchange
chemical_list: D008727:Methotrexate