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By: United States. Animal and Plant Health Inspection Service. Veterinary Services.Edition:Publication info: [Riverdale, Md.?], USDA, Animal and Plant Health Inspection Service, Veterinary Services, [2001]Volume: 2001Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Equidae Horses Internet resource Northeastern States Virus diseases West Nile feverBHL Collections: