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Wirtzfeld A, Schmidt G, Himmler FC, Klein G, Sauer E.Wirtzfeld A, et al. Among authors: schmidt g.Dtsch Med Wochenschr. 1980 Apr 11;105(15):525-30. doi: 10.1055/s-2008-1070701.Dtsch Med Wochenschr. 1980.PMID: 6988194Review.German.No abstract available.
Schmidt G, Wirtzfeld A, Himmler FC, Klein G, Alt E, Seidl KF, Präuer HW.Schmidt G, et al.Dtsch Med Wochenschr. 1980 Nov 14;105(46):1609-14. doi: 10.1055/s-2008-1070922.Dtsch Med Wochenschr. 1980.PMID: 7439041German.
Wirtzfeld A, Klein G, Himmler FC, Schmidt G, Kutschera I, Sauer E.Wirtzfeld A, et al. Among authors: schmidt g.Dtsch Med Wochenschr. 1980 Oct 3;105(40):1379-83. doi: 10.1055/s-2008-1070875.Dtsch Med Wochenschr. 1980.PMID: 7449633Clinical Trial.German.
Baedeker W, Alt E, Goedel-Meinen L, Schmidt G, von Bibra H, Klein G, Ulm K.Baedeker W, et al. Among authors: schmidt g.Dtsch Med Wochenschr. 1984 Apr 27;109(17):661-6. doi: 10.1055/s-2008-1069250.Dtsch Med Wochenschr. 1984.PMID: 6201330German.