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Cassens U, Ostkamp-Ostermann P, van der Werf N, Garritsen H, Ostermann H, Sibrowski W.Cassens U, et al.Transfus Med. 1999 Dec;9(4):311-20. doi: 10.1046/j.1365-3148.1999.00215.x.Transfus Med. 1999.PMID: 10583885