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Hei TK, Liu SX, Waldren C.Hei TK, et al.Proc Natl Acad Sci U S A. 1998 Jul 7;95(14):8103-7. doi: 10.1073/pnas.95.14.8103.Proc Natl Acad Sci U S A. 1998.PMID: 9653147Free PMC article.
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