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Mitchell RM, Whitlock RH, Stehman SM, Benedictus A, Chapagain PP, Grohn YT, Schukken YH.Mitchell RM, et al. Among authors: chapagain pp.Prev Vet Med. 2008 Mar 17;83(3-4):360-80. doi: 10.1016/j.prevetmed.2007.09.006. Epub 2007 Nov 26.Prev Vet Med. 2008.PMID: 18022716