title: Prevalence of internal parasites in Wisconsin specific-pathogen-free swine.
mesh_terms: D000818:Animals; D016782:Apicomplexa / Q000302:isolation & purification; D001200:Ascaris / Q000302:isolation & purification; D008681:Metastrongyloidea / Q000302:isolation & purification; D010273:Parasitic Diseases, Animal; D010879:Piperazines / Q000627:therapeutic use; D013321:Strongyloides / Q000302:isolation & purification; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*; D014234:Trichinella / Q000302:isolation & purification; D014922:Wisconsin
chemical_list: D010879:Piperazines