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Schneider E, Fischer PA, Clemens R, Balzereit F, Fünfgeld EW, Haase HJ.Schneider E, et al. Among authors: funfgeld ew.Dtsch Med Wochenschr. 1984 Jun 22;109(25):987-90. doi: 10.1055/s-2008-1069311.Dtsch Med Wochenschr. 1984.PMID: 6734455Clinical Trial.German.