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Nixdorff U, Wagner S, Erbel R, Weitzel P, Mohr-Kahaly S, Meyer J.Nixdorff U, et al. Among authors: wagner s.Dtsch Med Wochenschr. 1995 Dec 22;120(51-52):1761-7. doi: 10.1055/s-2008-1055539.Dtsch Med Wochenschr. 1995.PMID: 8549260German.