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Keller G, Adatte T, Stinnesbeck W, Rebolledo-Vieyra M, Fucugauchi JU, Kramar U, Stüben D.Keller G, et al.Proc Natl Acad Sci U S A. 2004 Mar 16;101(11):3753-8. doi: 10.1073/pnas.0400396101. Epub 2004 Mar 2.Proc Natl Acad Sci U S A. 2004.PMID: 15004276Free PMC article.