[Clinical study of central nervous system leukemia in childhood: analysis of factors influencing incidence of CNS-leukemia (author's transl)].
D000293:Adolescent; D002493:Central Nervous System Diseases / Q000209:etiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000150:complications*; D008297:Male