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Dudley JP, Rosen JM, Butel JS.Dudley JP, et al. Among authors: butel js.Proc Natl Acad Sci U S A. 1978 Dec;75(12):5797-801. doi: 10.1073/pnas.75.12.5797.Proc Natl Acad Sci U S A. 1978.PMID: 83648Free PMC article.