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Danner S, Lohse MJ.Danner S, et al.Proc Natl Acad Sci U S A. 1996 Sep 17;93(19):10145-50. doi: 10.1073/pnas.93.19.10145.Proc Natl Acad Sci U S A. 1996.PMID: 8816766Free PMC article.