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ENDERS-RUCKLE G, SIEGERT R.ENDERS-RUCKLE G, et al.Dtsch Med Wochenschr. 1961 Oct 20;86:1999-2008. doi: 10.1055/s-0028-1113045.Dtsch Med Wochenschr. 1961.PMID: 13890174German.No abstract available.
ENDERS-RUCKLE G, HEITE HJ, SIEGERT R.ENDERS-RUCKLE G, et al.Munch Med Wochenschr. 1959 Mar 20;101(12):490-4.Munch Med Wochenschr. 1959.PMID: 13644142German.No abstract available.