We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleCirculating Unmetabolized Folic Acid: Relationship to Folate Status and Effect of SupplementationAuthorsTam, Carolyn; O'Connor, Deborah; Koren, GideonPublicationObstetrics and Gynecology International, 2012, Vol 2012, p1ISSN1687-9589Publication typearticleDOI10.1155/2012/485179