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Norris CR, Griffey SM, Samii VF, Christopher MM, Mellema MS.Norris CR, et al.J Am Vet Med Assoc. 2001 May 1;218(9):1456-61. doi: 10.2460/javma.2001.218.1456.J Am Vet Med Assoc. 2001.PMID: 11345310Free article.
Norris CR, Griffey SM, Walsh P.Norris CR, et al.J Am Vet Med Assoc. 2002 Nov 15;221(10):1453-9. doi: 10.2460/javma.2002.221.1453.J Am Vet Med Assoc. 2002.PMID: 12458616Free article.
Schachter S, Norris CR.Schachter S, et al. Among authors: norris cr.J Am Vet Med Assoc. 2000 Apr 1;216(7):1100-3. doi: 10.2460/javma.2000.216.1100.J Am Vet Med Assoc. 2000.PMID: 10754671Free article.