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Noben-Trauth N, Shultz LD, Brombacher F, Urban JF Jr, Gu H, Paul WE.Noben-Trauth N, et al.Proc Natl Acad Sci U S A. 1997 Sep 30;94(20):10838-43. doi: 10.1073/pnas.94.20.10838.Proc Natl Acad Sci U S A. 1997.PMID: 9380721Free PMC article.