title: Folic acid supplementation and neural tube defects.
authors.forename: N J
authors.initials: NJ
authors.lastname: Wald
authors.forename: A K
authors.initials: AK
authors.lastname: Hackshaw
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D009436:Neural Tube Defects / Q000517:prevention & control*; D011247:Pregnancy; D012307:Risk Factors
chemical_list: D005492:Folic Acid