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Dhabhar FS, McEwen BS.Dhabhar FS, et al.Proc Natl Acad Sci U S A. 1999 Feb 2;96(3):1059-64. doi: 10.1073/pnas.96.3.1059.Proc Natl Acad Sci U S A. 1999.PMID: 9927693Free PMC article.