Vitamins to prevent neural tube defects.
D002986:Clinical Trials as Topic; D004992:Ethics, Medical; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D009436:Neural Tube Defects / Q000517:prevention & control*; D011247:Pregnancy; D037841:Pregnant People; D036302:Therapeutic Human Experimentation; D014815:Vitamins / Q000627:therapeutic use*
D014815:Vitamins