title: Some physical properties of a sheep pneumonia strain of Chlamydia psittaci.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D002690:Chlamydia Infections / Q000382:microbiology / Q000662:veterinary*; D002691:Chlamydophila psittaci / Q000302:isolation & purification / Q000502:physiology*; D012756:Sheep; D012757:Sheep Diseases / Q000382:microbiology*; D013696:Temperature; D013997:Time Factors