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Porzsolt F, Kojer M, Schmidl M, Greimel ER, Sigle J, Richter J, Eisemann M.Porzsolt F, et al.Health Qual Life Outcomes. 2004 Feb 19;2:10. doi: 10.1186/1477-7525-2-10.Health Qual Life Outcomes. 2004.PMID: 14975057Free PMC article.