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Weksler BB, Marcus AJ, Jaffe EA.Weksler BB, et al. Among authors: jaffe ea.Proc Natl Acad Sci U S A. 1977 Sep;74(9):3922-6. doi: 10.1073/pnas.74.9.3922.Proc Natl Acad Sci U S A. 1977.PMID: 333448Free PMC article.