Down syndrome and leukaemia.
D000208:Acute Disease; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000150:complications*; D006801:Humans; D007223:Infant; D007938:Leukemia / Q000145:classification / Q000150:complications* / Q000453:epidemiology