Poor prognosis of childhood acute lymphoblastic leukaemia.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000401:mortality*; D008297:Male; D011379:Prognosis; D012959:Socioeconomic Factors; D014421:Turkey