Folic acid to prevent neural tube defects.
D005060:Europe / Q000453:epidemiology; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage*; D006801:Humans; D009436:Neural Tube Defects / Q000453:epidemiology / Q000517:prevention & control*; D011247:Pregnancy; D015995:Prevalence; D014805:Vitamin B 12 / Q000502:physiology; D014852:Wales / Q000453:epidemiology
D005492:Folic Acid; D014805:Vitamin B 12