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van den Akker-van Marle ME, Chorus AM, Vliet Vlieland TP, van den Hout WB.van den Akker-van Marle ME, et al. Among authors: chorus am.Best Pract Res Clin Rheumatol. 2012 Oct;26(5):721-31. doi: 10.1016/j.berh.2012.08.005.Best Pract Res Clin Rheumatol. 2012.PMID: 23218434Review.