title: Some experiments relating to artificial immunity in enzootic pneumonia of pigs.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D000906:Antibodies / Q000032:analysis; D000941:Antigens; D003126:Colostrum; D003168:Complement Fixation Tests; D005260:Female; D005856:Germ-Free Life; D006386:Hemagglutination Tests; D007044:Hysterectomy; D007114:Immunization; D005779:Immunodiffusion; D009175:Mycoplasma Infections / Q000276:immunology / Q000662:veterinary*; D011014:Pneumonia / Q000662:veterinary*; D011247:Pregnancy; D013552:Swine; D013553:Swine Diseases / Q000276:immunology*
chemical_list: D000906:Antibodies; D000941:Antigens