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Mauk MD, Madden J 4th, Barchas JD, Thompson RF.Mauk MD, et al. Among authors: barchas jd.Proc Natl Acad Sci U S A. 1982 Dec;79(23):7598-602. doi: 10.1073/pnas.79.23.7598.Proc Natl Acad Sci U S A. 1982.PMID: 6296841Free PMC article.