title: A study of Salmonella typhimurium infection at a swine-testing station.
mesh_terms: D000818:Animals; D008923:Missouri; D012481:Salmonella Infections, Animal / Q000453:epidemiology*; D012486:Salmonella typhimurium; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*