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Wenger M, Sieber-Ruckstuhl NS, Müller C, Reusch CE.Wenger M, et al.Am J Vet Res. 2004 Sep;65(9):1245-50. doi: 10.2460/ajvr.2004.65.1245.Am J Vet Res. 2004.PMID: 15478772Free article.