title: Periconceptional folic acid intake in the northern Netherlands.
authors: H E
authors: HE
authors: de Walle
authors: L T
authors: LT
authors: de Jong-van den Berg
authors: M C
authors: MC
authors: Cornel
mesh_terms: D005260:Female; D005492:Folic Acid / Q000627:therapeutic use*; D006266:Health Education; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008402:Mass Media; D009426:Netherlands; D009436:Neural Tube Defects / Q000517:prevention & control; D016742:Preconception Care; D011247:Pregnancy / Q000523:psychology*; D011295:Prenatal Care; D011795:Surveys and Questionnaires
chemical_list: D005492:Folic Acid