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Hoover EA, Perigo NA, Quackenbush SL, Mathiason-DuBard CK, Overbaugh JM, Kloetzer WS, Elder JH, Mullins JI.Hoover EA, et al. Among authors: overbaugh jm.J Am Vet Med Assoc. 1991 Nov 15;199(10):1392-401.J Am Vet Med Assoc. 1991.PMID: 1666090