title: [30 years of Polish epidemiology].
mesh_terms: D004813:Epidemiology / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D007883:Legislation, Medical; D011044:Poland; D011051:Poliomyelitis / Q000266:history
vernacular_title: Trzydzieści lat polskiej epidemiologii (1944-1974)