title: Field trials with a formalinized vaccine against enzootic pneumonia of pigs.
mesh_terms: D000367:Age Factors; D000818:Animals; D000942:Antigens, Bacterial; D001428:Bacterial Vaccines / Q000008:administration & dosage*; D005557:Formaldehyde; D007279:Injections, Subcutaneous; D008168:Lung / Q000473:pathology; D009174:Mycoplasma; D009175:Mycoplasma Infections / Q000517:prevention & control / Q000662:veterinary*; D011014:Pneumonia / Q000473:pathology / Q000517:prevention & control / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000473:pathology / Q000517:prevention & control*
chemical_list: D000942:Antigens, Bacterial; D001428:Bacterial Vaccines; D005557:Formaldehyde