title: Failure to produce pneumonia in calves by inhalation of Mycoplasma bovirhinis and Ureaplasma aerosols.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology*; D003718:Denmark; D009174:Mycoplasma / Q000472:pathogenicity*; D011014:Pneumonia / Q000382:microbiology / Q000662:veterinary*; D014509:Ureaplasma / Q000472:pathogenicity*