We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleControl selection and participation in an ongoing, population-based, case-control study of birth defects: the National Birth Defects Prevention Study.AuthorsCogswell ME; Bitsko RH; Anderka M; Caton AR; Feldkamp ML; Hockett Sherlock SM; Meyer RE; Ramadhani T; Robbins JM; Shaw GM; Mathews TJ; Royle M; Reefhuis J; National Birth Defects Prevention StudyPublicationAmerican Journal of Epidemiology, 2009, Vol 170, Issue 8, p975ISSN0002-9262Publication typearticleDOI10.1093/aje/kwp226