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Wirtzfeld A, Schmidt G, Himmler FC, Klein G, Sauer E.Wirtzfeld A, et al. Among authors: klein 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.
Klein G, Wirtzfeld A, Himmler FC, Volger E.Klein G, et al.Dtsch Med Wochenschr. 1979 Apr 20;104(16):582-6. doi: 10.1055/s-0028-1103949.Dtsch Med Wochenschr. 1979.PMID: 108069German.
Wirtzfeld A, Klein G.Wirtzfeld A, et al. Among authors: klein g.Dtsch Med Wochenschr. 1982 Feb 26;107(8):310-2. doi: 10.1055/s-2008-1069924.Dtsch Med Wochenschr. 1982.PMID: 6120824German.No abstract available.
Klein G, Wirtzfeld A, Schlegel J, Himmler C, Neiss A.Klein G, et al.Dtsch Med Wochenschr. 1980 Feb 8;105(6):189-94. doi: 10.1055/s-2008-1070632.Dtsch Med Wochenschr. 1980.PMID: 6153310Clinical Trial.German.
Schmidt G, Wirtzfeld A, Himmler FC, Klein G, Alt E, Seidl KF, Präuer HW.Schmidt G, et al. Among authors: klein g.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: klein 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.
Wirtzfeld A, Klein G, Delius W, Sack D.Wirtzfeld A, et al. Among authors: klein g.Dtsch Med Wochenschr. 1978 Mar 31;103(13):566-74. doi: 10.1055/s-0028-1104477.Dtsch Med Wochenschr. 1978.PMID: 639687German.
Baedeker W, Alt E, Goedel-Meinen L, Schmidt G, von Bibra H, Klein G, Ulm K.Baedeker W, et al. Among authors: klein g.Dtsch Med Wochenschr. 1984 Apr 27;109(17):661-6. doi: 10.1055/s-2008-1069250.Dtsch Med Wochenschr. 1984.PMID: 6201330German.
Wirtzfeld A, Klein G, Delius W, Himmler C, Volger E, Davidson J.Wirtzfeld A, et al. Among authors: klein g.Dtsch Med Wochenschr. 1978 Dec 1;103(48):1915-21. doi: 10.1055/s-0028-1129367.Dtsch Med Wochenschr. 1978.PMID: 710319Clinical Trial.German.