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Piles M, García-Tomás M, Rafel O, Ramon J, Ibañez-Escriche N, Varona L.Piles M, et al. Among authors: varona l.J Anim Sci. 2007 Nov;85(11):2846-53. doi: 10.2527/jas.2006-218. Epub 2007 Aug 8.J Anim Sci. 2007.PMID: 17686894Free article.