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Schennink A, Stoop WM, Visker MH, van der Poel JJ, Bovenhuis H, van Arendonk JA.Schennink A, et al.J Dairy Sci. 2009 Sep;92(9):4676-82. doi: 10.3168/jds.2008-1965.J Dairy Sci. 2009.PMID: 19700731Free article.