Acute childhood leukaemias.
D000208:Acute Disease; D000293:Adolescent; D000367:Age Factors; D001900:Boston; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007938:Leukemia / Q000175:diagnosis* / Q000453:epidemiology; D007945:Leukemia, Lymphoid / Q000453:epidemiology; D007951:Leukemia, Myeloid / Q000453:epidemiology