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Erichsen HC, Engel SA, Eck PK, Welch R, Yeager M, Levine M, Siega-Riz AM, Olshan AF, Chanock SJ.Erichsen HC, et al.Am J Epidemiol. 2006 Feb 1;163(3):245-54. doi: 10.1093/aje/kwj035. Epub 2005 Dec 15.Am J Epidemiol. 2006.PMID: 16357110
Evenson KR, Moos MK, Carrier K, Siega-Riz AM.Evenson KR, et al.Matern Child Health J. 2009 May;13(3):364-75. doi: 10.1007/s10995-008-0359-8. Epub 2008 May 14.Matern Child Health J. 2009.PMID: 18478322Free PMC article.
Slickers JE, Olshan AF, Siega-Riz AM, Honein MA, Aylsworth AS; National Birth Defects Prevention Study.Slickers JE, et al.Am J Epidemiol. 2008 Dec 1;168(11):1259-67. doi: 10.1093/aje/kwn248. Epub 2008 Oct 3.Am J Epidemiol. 2008.PMID: 18835865