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Politz JC, Browne ES, Wolf DE, Pederson T.Politz JC, et al.Proc Natl Acad Sci U S A. 1998 May 26;95(11):6043-8. doi: 10.1073/pnas.95.11.6043.Proc Natl Acad Sci U S A. 1998.PMID: 9600914Free PMC article.