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Dai L, Pessler F, Chen LX, Clayburne G, Schumacher HR.Dai L, et al. Among authors: schumacher hr.Rheumatology (Oxford). 2006 May;45(5):533-7. doi: 10.1093/rheumatology/kei206. Epub 2005 Dec 13.Rheumatology (Oxford). 2006.PMID: 16352640
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