We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAscertainment bias in family-based case-control studies.AuthorsSiegmund KD; Langholz BPublicationAmerican journal of epidemiology, 2002, Vol 155, Issue 9, p875ISSN0002-9262Publication typearticleDOI10.1093/aje/155.9.875