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Shafritz DA, Lieberman HM, Isselbacher KJ, Wands JR.Shafritz DA, et al. Among authors: wands jr.Proc Natl Acad Sci U S A. 1982 Sep;79(18):5675-9. doi: 10.1073/pnas.79.18.5675.Proc Natl Acad Sci U S A. 1982.PMID: 6182569Free PMC article.