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Foley PL, Paul PS, Levings RL, Hanson SK, Middle LA.Foley PL, et al. Among authors: levings rl.Ann N Y Acad Sci. 1991 Dec 27;646:220-2. doi: 10.1111/j.1749-6632.1991.tb18581.x.Ann N Y Acad Sci. 1991.PMID: 1809192No abstract available.
Henderson LM, Levings RL, Davis AJ, Sturtz DR.Henderson LM, et al. Among authors: levings rl.Am J Vet Res. 1991 Jun;52(6):820-5.Am J Vet Res. 1991.PMID: 1652903
Wilbur LA, Evermann JF, Levings RL, Stoll IR, Starling DE, Spillers CA, Gustafson GA, McKeirnan AJ.Wilbur LA, et al. Among authors: levings rl.J Am Vet Med Assoc. 1994 Jun 1;204(11):1762-5.J Am Vet Med Assoc. 1994.PMID: 8063596No abstract available.
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