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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.
Knappe J, Thielmann K, Heinrich J, Dück KD, Strube G, Holtz H.Knappe J, et al. Among authors: duck kd.Z Gesamte Inn Med. 1977 Oct 1;32(19):486-9.Z Gesamte Inn Med. 1977.PMID: 595720German.
Knappe J, Dück KD.Knappe J, et al. Among authors: duck kd.Z Gesamte Inn Med. 1980 Oct 15;35(20):suppl 114-6.Z Gesamte Inn Med. 1980.PMID: 7210752German.
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.
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.
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.
Holtz H, Heinrich J, Dück KD, Rühling K, Heller R, Schauer I.Holtz H, et al. Among authors: duck kd.Z Gesamte Inn Med. 1983 Dec 1;38(23):644-9.Z Gesamte Inn Med. 1983.PMID: 6670341Clinical Trial.German.
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.
Knappe J, Heinrich J, Dück KD, Holtz H, Gräfner L.Knappe J, et al. Among authors: duck kd.Z Gesamte Inn Med. 1982 Oct 1;37(19):633-41.Z Gesamte Inn Med. 1982.PMID: 7180061Clinical Trial.German.