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Singer M, Busse R, Seib HJ, Elster K, Ottenjann R.Singer M, et al. Among authors: elster k.Dtsch Med Wochenschr. 1975 Nov 7;100(45):2313-6. doi: 10.1055/s-0028-1106540.Dtsch Med Wochenschr. 1975.PMID: 1081040German.
Ottenjann R, Lux G, Elster K, Bartelheimer W, Jakob G.Ottenjann R, et al. Among authors: elster k.Dtsch Med Wochenschr. 1974 Jun 28;99(26):1389-91. doi: 10.1055/s-0028-1107951.Dtsch Med Wochenschr. 1974.PMID: 4546101German.No abstract available.
Stadelmann O, Elster K, Chi PH, Ottenjann R.Stadelmann O, et al. Among authors: elster k.Dtsch Med Wochenschr. 1969 Apr 18;94(16):839-43. doi: 10.1055/s-0028-1111128.Dtsch Med Wochenschr. 1969.PMID: 5776709German.No abstract available.