title: High incidence of squamous cell carcinoma of the vulva in Merino ewes on a South African farm.
mesh_terms: D000818:Animals; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000662:veterinary*; D005260:Female; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D013019:South Africa; D014846:Vulvar Neoplasms / Q000453:epidemiology / Q000662:veterinary*