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De la Sota RL, Lucy MC, Staples CR, Thatcher WW.De la Sota RL, et al. Among authors: thatcher ww.J Dairy Sci. 1993 Apr;76(4):1002-13. doi: 10.3168/jds.S0022-0302(93)77428-7.J Dairy Sci. 1993.PMID: 8486832Free article.