title: Investigations of the ability of strains of Trichostrongylus axei to produce immunity in calves and sheep.
mesh_terms: D000018:Abomasum / Q000473:pathology; D000818:Animals; D000941:Antigens; D002417:Cattle; D002418:Cattle Diseases / Q000276:immunology*
chemical_list: D000941:Antigens