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Gorman E, Leyland AH, McCartney G, White IR, Katikireddi SV, Rutherford L, Graham L, Gray L.Gorman E, et al. Among authors: katikireddi sv.Am J Epidemiol. 2014 Nov 1;180(9):941-8. doi: 10.1093/aje/kwu207. Epub 2014 Sep 16.Am J Epidemiol. 2014.PMID: 25227767Free PMC article.