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May MG, Otterby DE, Linn JG, Hansen WP, Johnson DG, Putnam DH.May MG, et al. Among authors: hansen wp.J Dairy Sci. 1993 Sep;76(9):2682-91. doi: 10.3168/jds.S0022-0302(93)77604-3.J Dairy Sci. 1993.PMID: 8227670Free article.