An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Dück KD, Knappe J, Strube G.Dück KD, et al.Z Gesamte Inn Med. 1973 Aug 15;28(16):Suppl:248-51.Z Gesamte Inn Med. 1973.PMID: 4767603German.No abstract available.
Heinrich J, Knappe J, Gräfner L, Holtz H, Rühling K, Schauer I, Dück KD, Strube G.Heinrich J, et al. Among authors: duck kd.Z Gesamte Inn Med. 1979 Sep 15;34(18):540-4.Z Gesamte Inn Med. 1979.PMID: 516840German.
Dück KD, Holtz H, Heinrich J, Knappe J, Hahn W, Richard F.Dück KD, et al.Z Gesamte Inn Med. 1989 Jan 1;44(1):15-8.Z Gesamte Inn Med. 1989.PMID: 2711711Clinical Trial.German.
Dück KD, Oltmanns G, Knappe J, Holtz H, Richard F.Dück KD, et al.Z Gesamte Inn Med. 1988 Dec 1;43(23):685-8.Z Gesamte Inn Med. 1988.PMID: 3072782Clinical Trial.German.
Strube G, Holtz H, Knappe J, Dück KD.Strube G, et al. Among authors: duck kd.Z Gesamte Inn Med. 1973 Feb 15;28(4):55-7.Z Gesamte Inn Med. 1973.PMID: 4349581German.No abstract available.
Knappe J, Knappe G, Strube G, Dück KD, Relke W.Knappe J, et al. Among authors: duck kd.Z Gesamte Inn Med. 1971 Jan 1;26(1):18-21.Z Gesamte Inn Med. 1971.PMID: 5560758German.No abstract available.
Knappe J, Dück KD, Strube G, Holtz H, Heinrich J.Knappe J, et al. Among authors: duck kd.Z Gesamte Inn Med. 1980 Nov 1;35(21):suppl 136-8.Z Gesamte Inn Med. 1980.PMID: 6781157Clinical Trial.German.