Improvement in the therapy of acute lymphoblastic leukaemia in children.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000188:drug therapy*; D011379:Prognosis; D012306:Risk