We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleFolic Acid Supplementation for the Prevention of Neural Tube Defects: An Update of the Evidence for the U.S. Preventive Services Task Force.AuthorsWolff, Tracy; Witkop, Catherine Takacs; Miller, Therese; Syed, Shamsuzzoha B.PublicationAnnals of Internal Medicine, 2009, Vol 150, Issue 9, p632ISSN0003-4819Publication typearticleDOI10.7326/0003-4819-150-9-200905050-00010