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Whitfield KE, Forrester S, Thorpe RJ.Whitfield KE, et al.J Gerontol A Biol Sci Med Sci. 2019 Nov 13;74(Suppl_1):S27-S31. doi: 10.1093/gerona/glz214.J Gerontol A Biol Sci Med Sci. 2019.PMID: 31724054Free PMC article.