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Connell J, Brazier J, O'Cathain A, Lloyd-Jones M, Paisley S.Connell J, et al. Among authors: paisley s.Health Qual Life Outcomes. 2012 Nov 22;10:138. doi: 10.1186/1477-7525-10-138.Health Qual Life Outcomes. 2012.PMID: 23173689Free PMC article.Review.