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Raber M, Schulz HU, Schürer M, Bias-Imhoff U, Momberger H.Raber M, et al. Among authors: schurer m.Arzneimittelforschung. 1999 Jul;49(7):588-93. doi: 10.1055/s-0031-1300467.Arzneimittelforschung. 1999.PMID: 10442206Clinical Trial.