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Madl JE, McIlnay TR, Powell CC, Gionfriddo JR.Madl JE, et al. Among authors: gionfriddo jr.Am J Vet Res. 2005 May;66(5):791-9. doi: 10.2460/ajvr.2005.66.791.Am J Vet Res. 2005.PMID: 15934606Free article.