From the Centers for Disease Control and Prevention. Knowledge and use of folic acid by women of childbearing age--United States, 1995 and 1998.
D000293:Adolescent; D000328:Adult; D019587:Dietary Supplements; D005260:Female; D005492:Folic Acid; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D009436:Neural Tube Defects / Q000517:prevention & control*; D009751:Nutritional Requirements; D016742:Preconception Care; D014481:United States
D005492:Folic Acid