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White NA 2nd, Tyler DE, Blackwell RB, Allen D.White NA 2nd, et al. Among authors: blackwell rb.J Am Vet Med Assoc. 1987 Feb 1;190(3):311-5.J Am Vet Med Assoc. 1987.PMID: 3558072
White NA 2nd, Blackwell RB, Hoffman PE.White NA 2nd, et al. Among authors: blackwell rb.J Am Vet Med Assoc. 1982 Aug 1;181(3):252-4.J Am Vet Med Assoc. 1982.PMID: 7107502