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Gregory SM, West JA, Dillon PJ, Hilscher C, Dittmer DP, Damania B.Gregory SM, et al.Proc Natl Acad Sci U S A. 2009 Jul 14;106(28):11725-30. doi: 10.1073/pnas.0905316106. Epub 2009 Jun 29.Proc Natl Acad Sci U S A. 2009.PMID: 19564611Free PMC article.