title: Preconceptional use of folic acid amongst women of advanced maternal age.
authors.forename: H E
authors.initials: HE
authors.lastname: de Walle
authors.forename: M C
authors.initials: MC
authors.lastname: Cornel
authors.forename: D J
authors.initials: DJ
authors.lastname: de Smit
authors.forename: L T
authors.initials: LT
authors.lastname: de Jong-Van Den Berg
mesh_terms: D019587:Dietary Supplements; D005260:Female; D005492:Folic Acid / Q000627:therapeutic use*; D006801:Humans; D008423:Maternal Age; D016742:Preconception Care / Q000379:methods*; D011247:Pregnancy; D018566:Pregnancy, High-Risk
chemical_list: D005492:Folic Acid