Prenatal detection and prevention of neural tube defects in South Wales.
D004032:Diet; D005260:Female; D005494:Folic Acid Deficiency / Q000517:prevention & control; D006801:Humans; D009436:Neural Tube Defects / Q000175:diagnosis / Q000517:prevention & control*; D011247:Pregnancy; D011295:Prenatal Care; D014852:Wales