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Nielen M, Schukken YH, Brand A, Haring S, Ferwerda-van Zonneveld RT.Nielen M, et al. Among authors: schukken yh.J Dairy Sci. 1995 May;78(5):1050-61. doi: 10.3168/jds.S0022-0302(95)76721-2.J Dairy Sci. 1995.PMID: 7622716Free article.