title: Folic acid supplementation before pregnancy remains inadequate.
authors.forename: W J
authors.initials: WJ
authors.lastname: Huttly
authors.forename: N J
authors.initials: NJ
authors.lastname: Wald
authors.forename: J C
authors.initials: JC
authors.lastname: Walters
mesh_terms: D019587:Dietary Supplements; D004314:Down Syndrome / Q000517:prevention & control; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage*; D006801:Humans; D016742:Preconception Care; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods; D013222:State Medicine; D006113:United Kingdom
chemical_list: D005492:Folic Acid