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Wagner EL, Potter GD, Gibbs PG, Eller EM, Scott BD, Vogelsang MM, Walzem RL.Wagner EL, et al. Among authors: walzem rl.J Anim Sci. 2011 Mar;89(3):722-8. doi: 10.2527/jas.2010-2871. Epub 2010 Nov 12.J Anim Sci. 2011.PMID: 21075965Clinical Trial.