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Weimann JM, Charlton CA, Brazelton TR, Hackman RC, Blau HM.Weimann JM, et al. Among authors: blau hm.Proc Natl Acad Sci U S A. 2003 Feb 18;100(4):2088-93. doi: 10.1073/pnas.0337659100. Epub 2003 Feb 7.Proc Natl Acad Sci U S A. 2003.PMID: 12576546Free PMC article.