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Schwartz GT, Samonds KE, Godfrey LR, Jungers WL, Simons EL.Schwartz GT, et al. Among authors: samonds ke.Proc Natl Acad Sci U S A. 2002 Apr 30;99(9):6124-9. doi: 10.1073/pnas.092685099.Proc Natl Acad Sci U S A. 2002.PMID: 11983905Free PMC article.