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Wiesemann E, Deb M, Trebst C, Hemmer B, Stangel M, Windhagen A.Wiesemann E, et al. Among authors: stangel m.Mult Scler. 2008 Mar;14(2):166-76. doi: 10.1177/1352458507081342. Epub 2007 Oct 17.Mult Scler. 2008.PMID: 17942524Clinical Trial.