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Hollmig KA, Soehngen D, Leschke M, Kobbe G, Schneider P, Klein RM, Aul C, Heyll A.Hollmig KA, et al. Among authors: heyll a.Eur J Med Res. 1997 Feb 21;2(2):62-6.Eur J Med Res. 1997.PMID: 9085016