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Späth GF, Garraway LA, Turco SJ, Beverley SM.Späth GF, et al. Among authors: turco sj.Proc Natl Acad Sci U S A. 2003 Aug 5;100(16):9536-41. doi: 10.1073/pnas.1530604100. Epub 2003 Jul 17.Proc Natl Acad Sci U S A. 2003.PMID: 12869694Free PMC article.