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Murphy SE, Wickham KM, Lindgren BR, Spector LG, Joseph A.Murphy SE, et al.J Expo Sci Environ Epidemiol. 2013 Sep-Oct;23(5):513-8. doi: 10.1038/jes.2013.7. Epub 2013 Feb 27.J Expo Sci Environ Epidemiol. 2013.PMID: 23443235Free PMC article.
Wang H, Park SL, Stram DO, Haiman CA, Wilkens LR, Hecht SS, Kolonel LN, Murphy SE, Le Marchand L.Wang H, et al. Among authors: murphy se.Am J Epidemiol. 2015 Dec 1;182(11):945-51. doi: 10.1093/aje/kwv138. Epub 2015 Nov 14.Am J Epidemiol. 2015.PMID: 26568573Free PMC article.