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Murdoch JK, Keystone JS.Murdoch JK, et al. Among authors: keystone js.Can Med Assoc J. 1983 Mar 1;128(5):508.Can Med Assoc J. 1983.PMID: 6600648Free PMC article.No abstract available.
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Yang J, Keystone JS, McIntyre L, Spence H.Yang J, et al. Among authors: keystone js.Can Vet J. 1982 Apr;23(4):126-8.Can Vet J. 1982.PMID: 17422128Free PMC article.