title: Encephalomyelitis of swine caused by a haemagglutinating virus. VI. Morphology of the virus.
mesh_terms: D000818:Animals; D046508:Culture Techniques; D004682:Encephalomyelitis, Enzootic Porcine / Q000209:etiology*; D007668:Kidney; D008854:Microscopy, Electron; D009975:Orthomyxoviridae / Q000145:classification*; D009976:Orthomyxoviridae Infections / Q000382:microbiology / Q000662:veterinary*; D013552:Swine; D014776:Virus Cultivation