We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRisk of autism and increasing maternal and paternal age in a large north American population.AuthorsGrether JK; Anderson MC; Croen LA; Smith D; Windham GCPublicationAmerican journal of epidemiology, 2009, Vol 170, Issue 9, p1118ISSN1476-6256Publication typearticleDOI10.1093/aje/kwp247