title: Infectious necrotic hepatitis of sheep: an epidemiological survey on Welsh farms.
mesh_terms: D000818:Animals; D003013:Clostridium / Q000302:isolation & purification; D003015:Clostridium Infections / Q000662:veterinary*; D006520:Hepatitis, Animal / Q000453:epidemiology* / Q000382:microbiology; D008099:Liver / Q000382:microbiology; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology* / Q000382:microbiology; D014852:Wales