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Hadler HI, Dimitrijevic B, Mahalingam R.Hadler HI, et al.Proc Natl Acad Sci U S A. 1983 Nov;80(21):6495-9. doi: 10.1073/pnas.80.21.6495.Proc Natl Acad Sci U S A. 1983.PMID: 6579536Free PMC article.