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van der Maas A, Kievit W, van den Bemt BJ, van den Hoogen FH, van Riel PL, den Broeder AA.van der Maas A, et al. Among authors: den broeder aa.Ann Rheum Dis. 2012 Nov;71(11):1849-54. doi: 10.1136/annrheumdis-2011-200945. Epub 2012 Apr 13.Ann Rheum Dis. 2012.PMID: 22504561
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Barrera P, Joosten LA, den Broeder AA, van de Putte LB, van Riel PL, van den Berg WB.Barrera P, et al. Among authors: den broeder aa.Ann Rheum Dis. 2001 Jul;60(7):660-9. doi: 10.1136/ard.60.7.660.Ann Rheum Dis. 2001.PMID: 11406520Free PMC article.Clinical Trial.
den Broeder A, van de Putte L, Rau R, Schattenkirchner M, Van Riel P, Sander O, Binder C, Fenner H, Bankmann Y, Velagapudi R, Kempeni J, Kupper H.den Broeder A, et al.J Rheumatol. 2002 Nov;29(11):2288-98.J Rheumatol. 2002.PMID: 12415583Clinical Trial.