title: Letter from the editor.
authors.forename: T W
authors.initials: TW
authors.lastname: Sadler
mesh_terms: D000013:Congenital Abnormalities / Q000453:epidemiology*; D004813:Epidemiology; D005492:Folic Acid / Q000009:adverse effects; D006801:Humans; D009436:Neural Tube Defects / Q000139:chemically induced; D018570:Risk Assessment
chemical_list: D005492:Folic Acid