title: Preliminary studies on the immunity to Ascaris suum in pigs.
mesh_terms: D000818:Animals; D000937:Antigen-Antibody Reactions; D001196:Ascariasis / Q000276:immunology / Q000662:veterinary*; D001200:Ascaris / Q000276:immunology*; D013552:Swine; D005719:gamma-Globulins
chemical_list: D005719:gamma-Globulins