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Ballou MA, Sutherland MA, Brooks TA, Hulbert LE, Davis BL, Cobb CJ.Ballou MA, et al. Among authors: hulbert le.Vet Immunol Immunopathol. 2013 Feb 15;151(3-4):285-93. doi: 10.1016/j.vetimm.2012.11.018. Epub 2012 Dec 5.Vet Immunol Immunopathol. 2013.PMID: 23270586Clinical Trial.