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Clanet M, Kappos L, Hartung HP, Hohlfeld R; European IFNbeta-1a Dose-Comparison Study Investigators.Clanet M, et al. Among authors: hartung hp.Mult Scler. 2004 Apr;10(2):139-44. doi: 10.1191/1352458504ms990oa.Mult Scler. 2004.PMID: 15124757Clinical Trial.