Epidemiology of acute leukemia and Burkitt's tumor.
D000328:Adult; D000349:Africa; D002051:Burkitt Lymphoma / Q000453:epidemiology* / Q000209:etiology; D002648:Child; D006801:Humans; D007938:Leukemia / Q000453:epidemiology* / Q000209:etiology; D006113:United Kingdom; D014481:United States