[Distribution of cases and various epidemiological problems of leukemia in children in Poland].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007223:Infant; D007938:Leukemia / Q000453:epidemiology*; D008297:Male; D011044:Poland
Rozmieszczenie przypadków i niektóre zagadnienia epidemiologiczne białaczki u dzieci w Polsce.