We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRelative risk for genetic associations: the case-parent triad as a variant of case-cohort design.AuthorsAhsan H; Hodge SE; Heiman GA; Begg MD; Susser ESPublicationInternational journal of epidemiology, 2002, Vol 31, Issue 3, p669ISSN0300-5771Publication typearticleDOI10.1093/ije/31.3.669