title: Ultrastructural aspects of fertile and sterile cysts of Echinococcus granulosus developed in hosts of different species.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000473:pathology; D004443:Echinococcosis / Q000473:pathology / Q000662:veterinary*; D004446:Echinococcus / Q000254:growth & development* / Q000648:ultrastructure; D012756:Sheep; D012757:Sheep Diseases / Q000473:pathology*; D013552:Swine; D013553:Swine Diseases / Q000473:pathology*