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Biddle MK, Fox LK, Hancock DD.Biddle MK, et al. Among authors: fox lk.J Am Vet Med Assoc. 2003 Oct 15;223(8):1163-6. doi: 10.2460/javma.2003.223.1163.J Am Vet Med Assoc. 2003.PMID: 14584748Free article.