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Aldrich JV, Patkar KA, McLaughlin JP.Aldrich JV, et al.Proc Natl Acad Sci U S A. 2009 Oct 27;106(43):18396-401. doi: 10.1073/pnas.0910180106. Epub 2009 Oct 19.Proc Natl Acad Sci U S A. 2009.PMID: 19841255Free PMC article.