title: Five-year retrospective study of childhood leukaemia in the Sudan.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007938:Leukemia / Q000175:diagnosis / Q000453:epidemiology; D008297:Male; D012189:Retrospective Studies; D013397:Sudan