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Schmitz N, Djibey I, Kretschmer V, Mahn I, Mueller-Eckhardt C.Schmitz N, et al. Among authors: kretschmer v.Vox Sang. 1981;41(4):224-30. doi: 10.1111/j.1423-0410.1981.tb01040.x.Vox Sang. 1981.PMID: 7336676