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Lauter FR, Yanofsky C.Lauter FR, et al.Proc Natl Acad Sci U S A. 1993 Sep 1;90(17):8249-53. doi: 10.1073/pnas.90.17.8249.Proc Natl Acad Sci U S A. 1993.PMID: 8367490Free PMC article.