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Sweeney YT, Angeles RO, Cummings PK, Smith AD, Patton DL.Sweeney YT, et al. Among authors: cummings pk.J Med Primatol. 2011 Oct;40(5):327-34. doi: 10.1111/j.1600-0684.2011.00478.x. Epub 2011 Mar 28.J Med Primatol. 2011.PMID: 21443565Free PMC article.