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Schmid CL, Raehal KM, Bohn LM.Schmid CL, et al. Among authors: bohn lm.Proc Natl Acad Sci U S A. 2008 Jan 22;105(3):1079-84. doi: 10.1073/pnas.0708862105. Epub 2008 Jan 14.Proc Natl Acad Sci U S A. 2008.PMID: 18195357Free PMC article.