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Klein R, Berg PA.Klein R, et al. Among authors: berg pa.Dtsch Med Wochenschr. 1988 Oct 7;113(40):1549-53. doi: 10.1055/s-2008-1067848.Dtsch Med Wochenschr. 1988.PMID: 3168779German.
Berg PA, Klein R.Berg PA, et al.Dtsch Med Wochenschr. 1988 Jan 29;113(4):143-5. doi: 10.1055/s-2008-1067609.Dtsch Med Wochenschr. 1988.PMID: 3276488Review.German.No abstract available.
Berg PA, Klein R.Berg PA, et al.Dtsch Med Wochenschr. 1988 Jan 29;113(4):145-8. doi: 10.1055/s-2008-1067610.Dtsch Med Wochenschr. 1988.PMID: 3276489Review.German.No abstract available.