title: A study of infertility in Scottish Blackface sheep in Colombia, South America.
mesh_terms: D000818:Animals; D003105:Colombia; D005260:Female; D005298:Fertility; D007247:Infertility, Female / Q000453:epidemiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D006113:United Kingdom