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Larsen RS, Nutter FB, Augspurger T, Rocke TE, Tomlinson L, Thomas NJ, Stoskopf MK.Larsen RS, et al.J Am Vet Med Assoc. 2002 Jul 1;221(1):80-5. doi: 10.2460/javma.2002.221.80.J Am Vet Med Assoc. 2002.PMID: 12420829Free article.