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Bijl M, Bootsma H, Van Der Geld Y, Limburg PC, Kallenberg CG, Van Rijswijk MH.Bijl M, et al. Among authors: kallenberg cg.Ann Rheum Dis. 2004 Jul;63(7):831-5. doi: 10.1136/ard.2002.004796.Ann Rheum Dis. 2004.PMID: 15194579Free PMC article.