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Lehmann L, Klein HD, Kern E.Lehmann L, et al. Among authors: klein hd.Langenbecks Arch Chir. 1976 Feb 10;340(3):179-90. doi: 10.1007/BF01254855.Langenbecks Arch Chir. 1976.PMID: 1250050German.
Lehmann L, Klein HD.Lehmann L, et al. Among authors: klein hd.Res Exp Med (Berl). 1977 Sep 30;171(2):173-5. doi: 10.1007/BF01851364.Res Exp Med (Berl). 1977.PMID: 928976German.
Maxson CJ, Klein HD, Rubin W.Maxson CJ, et al. Among authors: klein hd.Med Clin North Am. 1994 Nov;78(6):1259-73. doi: 10.1016/s0025-7125(16)30099-2.Med Clin North Am. 1994.PMID: 7967908Review.
Sollberg G, Klein HD, Sollberg S.Sollberg G, et al. Among authors: klein hd.Dtsch Med Wochenschr. 1977 Apr 22;102(16):630-2.Dtsch Med Wochenschr. 1977.PMID: 852418German.No abstract available.