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Morse DP, Aruscavage PJ, Bass BL.Morse DP, et al. Among authors: bass bl.Proc Natl Acad Sci U S A. 2002 Jun 11;99(12):7906-11. doi: 10.1073/pnas.112704299. Epub 2002 Jun 4.Proc Natl Acad Sci U S A. 2002.PMID: 12048240Free PMC article.