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Marra CA, Esdaile JM, Guh D, Kopec JA, Brazier JE, Koehler BE, Chalmers A, Anis AH.Marra CA, et al.Med Care. 2004 Nov;42(11):1125-31. doi: 10.1097/00005650-200411000-00012.Med Care. 2004.PMID: 15586840
Marra CA, Rashidi AA, Guh D, Kopec JA, Abrahamowicz M, Esdaile JM, Brazier JE, Fortin PR, Anis AH.Marra CA, et al.Qual Life Res. 2005 Jun;14(5):1333-44. doi: 10.1007/s11136-004-6012-0.Qual Life Res. 2005.PMID: 16047508
Rashidi AA, Anis AH, Marra CA.Rashidi AA, et al. Among authors: marra ca.Health Qual Life Outcomes. 2006 Apr 20;4:25. doi: 10.1186/1477-7525-4-25.Health Qual Life Outcomes. 2006.PMID: 16626489Free PMC article.