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Kuehn GD, McFadden BA, Johanson RA, Hill JM, Shumway LK.Kuehn GD, et al. Among authors: mcfadden ba.Proc Natl Acad Sci U S A. 1969 Feb;62(2):407-14. doi: 10.1073/pnas.62.2.407.Proc Natl Acad Sci U S A. 1969.PMID: 4978742Free PMC article.
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