We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRisk factors for preterm birth in an international prospective cohort of nulliparous women.AuthorsDekker GA; Lee SY; North RA; McCowan LM; Simpson NA; Roberts CTPublicationPloS one, 2012, Vol 7, Issue 7, pe39154ISSN1932-6203Publication typearticleDOI10.1371/journal.pone.0039154