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Martin KR, Shreffler J, Schoster B, Callahan LF.Martin KR, et al. Among authors: shreffler j.Arthritis Care Res (Hoboken). 2010 Nov;62(11):1602-11. doi: 10.1002/acr.20267. Epub 2010 Jun 2.Arthritis Care Res (Hoboken). 2010.PMID: 20521309Free PMC article.
Callahan LF, Martin KR, Shreffler J, Kumar D, Schoster B, Kaufman JS, Schwartz TA.Callahan LF, et al. Among authors: shreffler j.Arthritis Care Res (Hoboken). 2011 May;63(5):643-53. doi: 10.1002/acr.20428.Arthritis Care Res (Hoboken). 2011.PMID: 21225675Free PMC article.