Down's syndrome and leukaemia.
D000208:Acute Disease; D000293:Adolescent; D002648:Child; D002869:Chromosome Aberrations; D004314:Down Syndrome / Q000150:complications*; D005260:Female; D006801:Humans; D007621:Karyotyping; D007938:Leukemia / Q000150:complications* / Q000235:genetics; D008297:Male; D009369:Neoplasms / Q000235:genetics