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Kopec JA, Sayre EC, Davis AM, Badley EM, Abrahamowicz M, Sherlock L, Williams JI, Anis AH, Esdaile JM.Kopec JA, et al. Among authors: sayre ec.Health Qual Life Outcomes. 2006 Jun 2;4:33. doi: 10.1186/1477-7525-4-33.Health Qual Life Outcomes. 2006.PMID: 16749932Free PMC article.
Kopec JA, Badii M, McKenna M, Lima VD, Sayre EC, Dvorak M.Kopec JA, et al. Among authors: sayre ec.Spine (Phila Pa 1976). 2008 May 20;33(12):1384-90. doi: 10.1097/BRS.0b013e3181732a3b.Spine (Phila Pa 1976). 2008.PMID: 18496353