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Manahan-Vaughan D, Braunewell KH.Manahan-Vaughan D, et al.Proc Natl Acad Sci U S A. 1999 Jul 20;96(15):8739-44. doi: 10.1073/pnas.96.15.8739.Proc Natl Acad Sci U S A. 1999.PMID: 10411945Free PMC article.