We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRisk of early or severe pre-eclampsia related to pre-existing conditions.AuthorsCatov JM; Ness RB; Kip KE; Olsen JPublicationInternational journal of epidemiology, 2007, Vol 36, Issue 2, p412ISSN0300-5771Publication typearticleDOI10.1093/ije/dyl271