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Yost KJ, Hahn EA, Zaslavsky AM, Ayanian JZ, West DW.Yost KJ, et al. Among authors: hahn ea.Health Qual Life Outcomes. 2008 Aug 25;6:66. doi: 10.1186/1477-7525-6-66.Health Qual Life Outcomes. 2008.PMID: 18724874Free PMC article.