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Eshel G, Gulik A, Halperin N, Avrahami E, Schumacher HR, McCarty DJ, Caspi D.Eshel G, et al. Among authors: schumacher hr.Ann Rheum Dis. 1990 Jul;49(7):528-30. doi: 10.1136/ard.49.7.528.Ann Rheum Dis. 1990.PMID: 2383078Free PMC article.
Rooney T, Bresnihan B, Andersson U, Gogarty M, Kraan M, Schumacher HR, Ulfgren AK, Veale DJ, Youssef PP, Tak PP.Rooney T, et al. Among authors: schumacher hr.Ann Rheum Dis. 2007 Dec;66(12):1656-60. doi: 10.1136/ard.2006.061143. Epub 2007 Jun 29.Ann Rheum Dis. 2007.PMID: 17604286Free PMC article.