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Hakonarson H, Grunstein MM.Hakonarson H, et al.Proc Natl Acad Sci U S A. 1998 Apr 28;95(9):5257-62. doi: 10.1073/pnas.95.9.5257.Proc Natl Acad Sci U S A. 1998.PMID: 9560263Free PMC article.