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Bruhn HD, Müller L, Duckert F.Bruhn HD, et al.Schweiz Med Wochenschr. 1968 Oct 19;98(42):1650.Schweiz Med Wochenschr. 1968.PMID: 4235242German.No abstract available.
BRUHN HD, KELLER H.BRUHN HD, et al.Dtsch Med Wochenschr. 1964 Oct 23;89:2036-9. doi: 10.1055/s-0028-1113233.Dtsch Med Wochenschr. 1964.PMID: 14218234German.No abstract available.