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Walter RB, Gooley TA, van der Velden VH, Loken MR, van Dongen JJ, Flowers DA, Bernstein ID, Appelbaum FR.Walter RB, et al.Blood. 2007 May 15;109(10):4168-70. doi: 10.1182/blood-2006-09-047399. Epub 2007 Jan 16.Blood. 2007.PMID: 17227830Free PMC article.