Sheep tumours in North East Yorkshire. II. Experimental production of tumours.
D000821:Animal Feed / Q000009:adverse effects*; D000818:Animals; D002295:Carcinoma, Transitional Cell / Q000209:etiology / Q000662:veterinary; D008297:Male; D009369:Neoplasms / Q000209:etiology / Q000662:veterinary*; D010944:Plants; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology*; D001749:Urinary Bladder Neoplasms / Q000209:etiology / Q000662:veterinary