title: Chronic lymphocytic leukemia terminating in acute leukemia.
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007938:Leukemia / Q000453:epidemiology / Q000209:etiology*; D007945:Leukemia, Lymphoid / Q000473:pathology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011379:Prognosis