We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleMaternal serum vitamin D levels at 11-13 weeks of gestation in preeclampsia.AuthorsYu CK; Ertl R; Skyfta E; Akolekar R; Nicolaides KHPublicationJournal of human hypertension, 2013, Vol 27, Issue 2, p115ISSN1476-5527Publication typearticleDOI10.1038/jhh.2012.1