title: Vitamins and neural tube defects.
mesh_terms: D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004338:Drug Combinations / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008903:Minerals / Q000627:therapeutic use*; D009436:Neural Tube Defects / Q000517:prevention & control*; D011247:Pregnancy / Q000378:metabolism*; D011897:Random Allocation; D012307:Risk Factors; D014815:Vitamins / Q000627:therapeutic use*
chemical_list: D004338:Drug Combinations; D008903:Minerals; D014815:Vitamins; C045700:Pregnavite forte F