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Lascelles BD, Blikslager AT, Fox SM, Reece D.Lascelles BD, et al.J Am Vet Med Assoc. 2005 Oct 1;227(7):1112-7. doi: 10.2460/javma.2005.227.1112.J Am Vet Med Assoc. 2005.PMID: 16220672Free article.