Incidence of leukaemias in the Cracow region in the years 1961--1968 and breeding of certain domestic animals.
D000822:Animal Husbandry; D000818:Animals; D001947:Breeding; D006801:Humans; D007938:Leukemia / Q000453:epidemiology* / Q000209:etiology; D011044:Poland; D012424:Rural Population; D013223:Statistics as Topic