Spina bifida trial. Research council goes public.
D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D005492:Folic Acid / Q000627:therapeutic use*; D006801:Humans; D011247:Pregnancy; D016136:Spina Bifida Occulta / Q000517:prevention & control*
D005492:Folic Acid