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McLean NS, Ward DA, Hendrix DV, Donnell RL, Ilha MR.McLean NS, et al. Among authors: donnell rl.J Am Vet Med Assoc. 2008 Mar 1;232(5):715-21. doi: 10.2460/javma.232.5.715.J Am Vet Med Assoc. 2008.PMID: 18312178Free article.