The epidemiology of bovine leukosis.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000175:diagnosis / Q000235:genetics; D004813:Epidemiology; D008218:Lymphocytosis / Q000175:diagnosis; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis / Q000209:etiology / Q000235:genetics / Q000662:veterinary*