A critique of the methods and results of the British national surveys of disease in farm animals. I. Discussion of the surveys.
D000818:Animals; D000831:Animals, Newborn; D002007:Brucellosis, Bovine / Q000453:epidemiology; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000401:mortality; D019411:Clinical Laboratory Techniques / Q000662:veterinary; D003612:Dairying; D004812:Epidemiologic Methods / Q000662:veterinary*; D011996:Records; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D006113:United Kingdom