Bright blindness in sheep--the relationship to environment.
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D004739:England; D004777:Environment; D005260:Female; D012162:Retinal Degeneration / Q000453:epidemiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology*