title: Occurrence of adenoviral pneumoenteritis among sheep kept under extensive conditions in Sweden.
mesh_terms: D000257:Adenoviridae Infections / Q000453:epidemiology / Q000662:veterinary*; D000818:Animals; D004751:Enteritis / Q000453:epidemiology / Q000662:veterinary*; D011024:Pneumonia, Viral / Q000453:epidemiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology / Q000209:etiology*; D013548:Sweden