Mendenhall M K, Ford S L, Emerson C L, Wells R A, Gines L G, Eriks I S
Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman 99164-7040, USA.
J Vet Diagn Invest. 2000 Jan;12(1):57-60. doi: 10.1177/104063870001200110.