Ketosis in Norwegian dairy herds--some epidemiological associations.
D000138:Acidosis / Q000662:veterinary*; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D005260:Female; D005843:Geography; D007662:Ketosis / Q000453:epidemiology / Q000662:veterinary*; D009664:Norway