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Johnson MD, Bao HF, Helms MN, Chen XJ, Tigue Z, Jain L, Dobbs LG, Eaton DC.Johnson MD, et al. Among authors: jain l.Proc Natl Acad Sci U S A. 2006 Mar 28;103(13):4964-9. doi: 10.1073/pnas.0600855103. Epub 2006 Mar 20.Proc Natl Acad Sci U S A. 2006.PMID: 16549766Free PMC article.