title: Ultrastructural study of the development of the agent of ewe's abortion.
mesh_terms: D002462:Cell Membrane / Q000648:ultrastructure; D002473:Cell Wall / Q000648:ultrastructure; D002689:Chlamydia / Q000254:growth & development / Q000648:ultrastructure*; D006367:HeLa Cells; D010587:Phagocytosis; D012270:Ribosomes / Q000648:ultrastructure; D014617:Vacuoles